source: The effective date of this transaction will be the date the last party signs this SOW  and will be remain in effect until July 31, 2017.
target: The effective date of this transaction will be the date the last party signs this SOW. This will remain in effect until July 31, 2017.
references: The effective date of this transaction will be the date the last party signs this SOW. This will remain in effect until July 31, 2017.