Problem: S1: Stosur then traveled to Fribourg to represent Switzerland in their Fed Cup against Australia .
S2: Stosur then traveled to Fribourg to represent Switzerland in their Fed Cup tie against Australia .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: The River Urechioiu is a tributary of the Sitna River in Romania .
S2: The Urechioiu River is a tributary of the Sitna River in Romania .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: In 1955 , this became the Central Electricity Generating Board , which in turn became the Central Electricity Authority in 1957 .
S2: In 1955 , the company became the Central Electricity Authority , which in turn became the Central Electricity Generating Board in 1957 .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
no