Rent Abatement. In the event of a Casualty affecting the Premises, there shall be an equitable adjustment of Base Rent, Operating Costs and Taxes based upon the degree to which Tenant’s ability to conduct its business in the Premises is impaired by reason of such Casualty from and after the date of a Casualty, and continuing until the following portions of the repair and restoration work to be performed by Landlord, as set forth above, are substantially completed: # any repair and restoration work to be performed by Landlord within the Premises, and # repair and restoration work with respect to the Common Areas to the extent that damage to the Common Areas caused by such Casualty materially adversely affects Tenant’s use of, or access to, the Premises.

Rent Abatement. In the event of a Casualty affecting the Premises, there shall be an equitable adjustment of Base Rent, Operating Costs and Taxes based upon the degree to which Tenant’s ability to conduct its business in the Premises is impaired by reason of such Casualty from and after the date of a Casualty, and continuing until the following portions of the repair and restoration work to be performed by Landlord, as set forth above, are substantially completed: # any repair and restoration work to be performed by Landlord within the Premises, and # repair and restoration work with respect to the Common Areas to the extent that damage to the Common Areas caused by such Casualty materially adversely affects Tenant’s use of, or access to, the Premises.

Rent Abatement. In the event of a Casualty affecting the Premises, there shall be an equitable adjustment of Base Rent, Operating Costs and Taxes based upon the degree to which Tenant’s ability to conduct its business in the Premises is impaired by reason of such Casualty from and after the date of a Casualty, and continuing until the following portions of the repair and restoration work to be performed by Landlord, as set forth above, are substantially completed: # any repair and restoration work to be performed by Landlord within the Premises, and # repair and restoration work with respect to the Common Areas to the extent that damage to the Common Areas caused by such Casualty materially adversely affects Tenant’s use of, or access to, the Premises.

Rent Abatement. As long as Tenant is not in default under the terms of the Lease, rent for the Expansion Premises shall be abated for the first seven (7) months following the Expansion Commencement Date.

RENT ABATEMENT. Base Rent for months 2-5 shall be abated by 50% per Paragraph 52 above. CAMs are due in full during Rent Abatement period.

Except for the negligence or willful act of Tenant or its agents, employees, contractors or invitees, if all or any part of the Premises are rendered untenantable by fire or other casualty and this Lease is not terminated, Monthly Base Rent and Rent Adjustments shall abate for that part of the Premises which is untenantable on a per diem basis from the date of the casualty until Landlord has Substantially Completed the repair and restoration work in the Premises which it is required to perform, provided, that as a result of such casualty, Tenant does not occupy the portion of the Premises which is untenantable during such period.

Rent Abatement. If Landlord fails to perform the obligations required of Landlord under the terms of this Lease and such failure causes all or a portion of the Premises to be unusable by, or inaccessible to, Tenant and such failure relates to # the nonfunctioning of the Building HVAC system in the Premises, the interruption of electricity to the Premises, the nonfunctioning of the elevator service to the Premises, or # a failure to provide access to all or a portion of the Premises (including as a result of any work performed by Landlord in or about the Premises or the Building unless in response to Tenant's request or as a result of Tenant's breach of this Lease), Tenant shall give Landlord notice to the Building management office and the other Landlord notice addresses set forth in Section 11 of the Summary (the "Initial Failure Notice"), specifying such failure to perform by Landlord (the "Abatement Event"). The address for the Building management office is currently 360 Third Street, Suite 105, San Francisco, California 94107, provided that Landlord may change such address and its other notice addresses from time to time by notice to Tenant. If Landlord has not cured such Abatement Event within three (3) business days after the receipt of the Initial Failure Notice (the "Eligibility Period"), Tenant may deliver an additional notice to Landlord (the "Additional Failure Notice"), specifying such Abatement Event and Tenant's intention to abate the payment of Rent under this Lease. If Landlord does not cure such Abatement Event within three (3) business days of receipt of the Additional Failure Notice, Tenant may, upon written notice to Landlord, immediately abate Rent payable under this Lease for that portion of the Premises rendered unusable or inaccessible and not used by Tenant, for the period beginning on the expiration of the Eligibility Period to the earlier of the date Landlord cures such Abatement Event or the date Tenant recommences the use of such portion of the Premises. Such right to abate Rent shall be Tenant's sole and exclusive remedy at law or in equity for an Abatement Event. Except as provided in this [Section 6.4], nothing contained herein shall be interpreted to mean that Tenant is excused from paying Rent due hereunder.

Abatement of Rent. In the event that: # there shall be an interruption, curtailment or suspension of any service or failure to perform any obligation required to be provided or performed by Landlord pursuant to Sections 9 and/or 10 (and no reasonably equivalent alternative service or supply is provided by Landlord) that shall materially interfere with Tenant’s use and enjoyment of the Premises, or any portion thereof (any such event, a “Service Interruption”), and # such Service Interruption shall continue for five (5) consecutive business days following receipt by Landlord of written notice (the “Service Interruption Notice”) from Tenant describing such Service Interruption (“Abatement Service Interruption Cure Period”), and # such Service Interruption shall not have been caused by an act or omission of Tenant or Tenant’s agents, employees, contractors or invitees (an event that satisfies the foregoing conditions (i)-(iii) being referred to hereinafter as a “Material Service Interruption”) then, Tenant, subject to the next following sentence, shall be entitled to an equitable abatement of Base Rent, Operating Costs and Taxes based on the nature and duration of the Material Service Interruption and the area of the Premises affected, for any and all days following the Material Service Interruption Cure Period that both # the Material Service Interruption is continuing and # Tenant does not use such affected areas of the Premises for any of the Permitted Uses. Any efforts by Tenant to respond or react to any Material Service Interruption, including, without limitation, any activities by Tenant to remove its personal property from the affected areas of the Premises, shall not constitute a use that precludes abatement pursuant to this Section 10.7(a). The Abatement Service Interruption Cure Period shall be extended by reason of any delays in Landlord’s ability to cure the Service Interruption in question caused by Force Majeure, provided however, that in no event shall the Abatement Service Interruption Cure Period with respect to any Service Interruption be longer than ten (10) consecutive business days after Landlord receives the applicable Service Interruption Notice.

Abatement Of Rent. In the event of damage to the Leased Premises which does not result in the termination of this Lease, then the Base Monthly Rent (and any Additional Rent) shall be temporarily abated during the period (after the Insured Period) of Landlord’s and/or Tenant’s (as applicable) restoration, in proportion in the degree to which Tenant’s use of the Leased Premises is impaired by such damage.

Abatement Of Rent. In the event of a taking of the Leased Premises which does not result in a termination of this Lease (other than a temporary taking), then, as of the date possession is taken by the condemning authority, the Base Monthly Rent shall be reduced in the same proportion that the area of that part of the Leased Premises so taken (less any addition to the area of the Leased Premises by reason of any reconstruction) bears to the area of the Leased Premises immediately prior to such taking.