Problem: S1: Between 1900 and 1915 additional tracks were built for local traffic with the existing tracks being reserved for through trains .
S2: Between 1900 and 1915 , additional tracks were built for local traffic , with the existing tracks reserved for transit trains .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: During the intensive recultivation efforts around the Shanghai Islands in the late 1960s , many tankas were settled on the island of Hengsha and organised as fishing brigades .
S2: During the intensive reclamation efforts around the islands of Shanghai in the late 1960s , many Tanka were settled on Hengsha Island and organised as fishing brigades .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: His second wife was Anna Williams , his first wife 's sister .
S2: His first wife was Anna Williams , sister of his second wife .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
no