Problem: S1: The chiral centers in pumiliotoxin 251D can give several stereoisomers of the compound . Only one form of the toxin is present in nature and has toxic properties .
S2: The chiral centers in Pumiliotoxin 251D can create several stereoisomers of the connection : only one form of toxin is present in nature and has toxic properties .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: They were accompanied by several other families , or were soon followed , including Masters , Parker , Lundy , Battin , Kisner , Lemon , Oliver , and Rich .
S2: They were accompanied by some other families or were soon followed by them , including Masters , Kisner , Battin , Parker , Lundy , Lemon , Oliver and Rich .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: no

Problem: S1: The fifth season premiered on September 15 , 2013 . The sixth season premiered on April 10 , 2014 .
S2: The fifth season was premiered on September 15 , 2013 , and the sixth season was premiered on April 10 , 2014 .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
yes