Problem: S1: In the United Kingdom , mescaline in purified powder form is a Class A drug . However , dried cactus can be bought and sold legally .
S2: In the United Kingdom , meskaline is a class A drug in purified powder form , but dried cactus can be bought and sold legally .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: When Khadr was injured in a 1995 battle in Kabul , Mohamad Elzahabi visited him the Peshawar hospital .
S2: When Mohamad Elzahabi was injured in a battle in Kabul in 1995 , Khadr visited him in Peshawar hospital .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: no

Problem: S1: Leider married the first concert master of the Berlin State Opera , Prof. Rudolf Deman .
S2: The first concert master of the Berlin State Opera , Prof. Rudolf Deman , was married .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
no