Sentence 1: In 219 , while Guan Yu was attacking Fancheng , Sun Quan agreed to send reinforcements to help the entrapped Cao Ren .
Sentence 2: In 219 , while Cao Ren Fancheng was attacking , Sun Quan agreed to send reinforcements to help the enclosed Guan Yu .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?