In 235 BC , after an attack on the state of Zhao , troops united from the states of Qin and Chu Wei attacked , but suffered a defeat .
In 235 BC , after an attack on the state of Zhao , united troops from the states of Qin and Wei to attack Chu , however , defeat suffered .

Are these two sentences paraphrases of each other?
OPTIONS: a. no. b. yes.
a.