Problem: S1: They are used in applications as a contrast medium for biological imaging , as particles for flow tracking or as fluorescent carriers .
S2: They are used in applications as contrast agents for biological imaging , as particles for flow tracking , or as fluorescent carriers .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: A multi-region - DVD of the entire series was published by Warner Archive on 4 February 2015 and announced on February 10 , 2015 .
S2: A multi-region DVD of the entire series was released on February 4 , 2015 by Warner Archive and was announced on February 10 , 2015 .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: The South Branch and North Branch join north of Boyne Falls , and the resulting Boyne River flows northwest to Boyne City at the southeastern end of Lake Charlevoix .
S2: The South Branch and North Branch unite north of the Boyne Falls , and the resulting Boyne River flows north-west to Boyne City at the southeastern end of Lake Charlevoix .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
yes