Problem: S1: The successor rocket , the Falcon 9 , successfully landed its first stage on 22 December 2015 with its twentieth flight for the first time .
S2: The successor rocket , the Falcon 9 , landed its first stage successfully on land for the twentieth time on its first flight , on December 22 , 2015 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Pearland ISD serves most of the city of Pearland , the city of Brookside Village and unregistered areas in Brazoria County ( including Silverlake ) .
S2: Pearland ISD serves most of the city of Pearland , the city of Brookside Village , and unincorporated areas in Brazoria County ( including Silverlake ) .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: The South / Kazai government was supported by another Belgian mining company , which received concessions from the new state in return for financial support .
S2: The South Kasai government was supported by , another new mining company , which received concessions from the Belgian state in return for financial support .

Do S1 & S2 convey the same information?

A:
no