Problem: S1: Glasson won national hall championships , including nine Australian championships , 19 times .
S2: Glasson won Australian championships 19 times including nine national indoor championships .

Do S1 & S2 convey the same information?

A: no

Problem: S1: ( Formula 26 are normal vectors at the intersection points ; their product is scalar in Formula 27 . )
S2: ( formula 26 are normal vectors at the intersection points . Their formula 27 product is scalar . )

Do S1 & S2 convey the same information?

A: yes

Problem: S1: The newspaper reports on business , politics , developments in corporate and labour law , commercial news and features .
S2: The work reports on business , politics , developments in commercial and labour law , corporate news and features .

Do S1 & S2 convey the same information?

A:
no