Problem: S1: Hasegawa ' s research also includes the political and social history of the Russian Revolution of 1917 and Soviet -- Japanese relations .
S2: Hasegawa 's research also includes the political and social history of the Russian Revolution of 1917 and Soviet -- Japanese relations .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: He joined the Middlesex County Cricket Club Cricket Committee in 1958 and the General Committee in 1960 .
S2: He entered the Middlesex County Cricket Club Cricket Committee in 1958 and the General Committee in 1960 .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: In the late 1970s , Willie Francis lived in Canada and worked in Jamaica for several years before returning to England .
S2: In the late 1970s , Willie Francis worked in England and lived in Canada for a number of years before returning to Jamaica .

Do S1 & S2 convey the same information?

A:
no