Problem: S1: KSR-3 ( Korean Sounding Rocket-3 ) is South Korean sounding rocket designed by KARI .
S2: KSR-3 ( Korean Sounding Rocket-3 ) is a Korean sounding rocket designed by KARI .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Tipsarevic started playing tennis at age six , and at the age of nine , began playing at the New Belgrade Tennis Club with Russian coach Roman Savochkin .
S2: Tipsarevic started playing tennis at the age of six , and at the age of nine he began with the Russian coach Roman Savochkin at the New Belgrade Tennis Club .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Danny Olsen ( born June 11 , 1985 ) is a Danish football professional . He is the twin brother of Kenni Olsen , the current assistant to Herlev IF .
S2: Kenni Olsen ( born 11 June 1985 ) is a Danish professional footballer . He is the twin brother of the current Herlev IF assistant coach , Danny Olsen .

Do S1 & S2 convey the same information?

A:
no