1. At 10 : 59 AM the last naval element of the 2nd Marine Battalion left the zone and the last helicopter landed at 12 : 15 on the USS '' Okinawa '' .
2. At 10 : 59 AM the last element of the 2nd Battalion 4th Marines left the zone and the last naval helicopter landed at 12 : 15 on the USS '' Okinawa '' .

Are these two sentences paraphrases of each other?
no