Problem: S1: Chinese cuisine is based on local cuisine , particularly from the provinces of Fujian , Guangdong and Yunnan , with Burmese - Chinese influences .
S2: Burmese Chinese cuisine is based on Chinese cuisine , particularly from Fujian , Guangdong and Yunnan provinces , with local influences .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The museum consists of a main information room , a restoration hangar , the new Texas Flying Legends hangar , and the Oswin H. Elker Hangar .
S2: The museum consists of a new information room , a restoration hangar , the main hangar Texas Flying Legends and the hangar Oswin H. Elker .

Do S1 & S2 convey the same information?

A: no

Problem: S1: It is sometimes convenient to also define the purely covariant version by
S2: It is also convenient to sometimes define a purely covariant version by :

Do S1 & S2 convey the same information?

A:
no