source: The effective date of this transaction will be the date the last party signs this SOW , and this SOW will remain in effect until the later of December 31, 2018 or until Deliverables and Services are completed .
target: The effective date of this transaction will be the date the last party signs this SOW. This SOW will remain in effect until the later of December 31, 2018. It may also be until Deliverables and Services are completed .
references: The effective date of this transaction will be the date the last party signs this SOW. This SOW will remain in effect until the later of December 31, 2018. It may also be until Deliverables and Services are completed .