Problem: S1: After 2015 season Seoul FC Martyrs joined the league , but three new teams Buyeo FC , Siheung Citizen and Yangpyeong FC left them .
S2: After the 2015 season , Seoul FC Martyrs left the league , but three new teams added Buyeo FC , Siheung Citizen and Yangpyeong FC .

Do S1 & S2 convey the same information?

A: no

Problem: S1: It is found is the Midlands Province , in the central Zimbabwe .
S2: It is found the Midlands Province , in the central Zimbabwe .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: The total number of electrons and the electron density is much greater than in the corresponding positive corona .
S2: The corresponding positive number of electrons , and electron density is much greater than in the total corona .

Do S1 & S2 convey the same information?

A:
no