Problem: S1: The song is a crossover from Dance ManiaX 2ndMix , composed by Tomosuke Funaki and sung by emi .
S2: This song is a crossover from Dance ManiaX 2ndMix , sung by Tomosuke Funaki and composed by emi .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Searching a binary search tree after a specific key can be programmed recursively or iteratively .
S2: Searching a specific search tree for a binary key can be programmed recursively or iteratively .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Problem-specific methods are needed to find the cuts used by this method .
S2: Problem-specific methods are used to find the sections needed by this method .

Do S1 & S2 convey the same information?

A:
no