Problem: S1: Proteins that form stable complexes with binding molecules are often referred to as receptors , whereas their other partners are called ligands .
S2: Proteins that form stable complexes with other molecules are often referred to as receptors while their binding partners are called ligands .

Do S1 & S2 convey the same information?

A: no

Problem: S1: On Labor Eve 2016 , Bute was named as the replacement for Julio Cesar Chavez Jr. to challenge Badou Jack for the WBC Super Middleweight Championship .
S2: At the Labor Eve 2016 , Badou Jack was named as a replacement for Bute to challenge Julio Cesar Chavez Jr. for the WBC Super Middleweight Championship .

Do S1 & S2 convey the same information?

A: no

Problem: S1: In 235 BC , after an attack on the state of Zhao , united troops from the states of Qin and Wei to attack Chu , they suffered a defeat .
S2: In 235 BCE , after an attack on the State of Zhao , troops from the states of Qin and Wei united to attack Chu but suffered a defeat .

Do S1 & S2 convey the same information?

A:
yes