Problem: S1: There is some uncertainty as to whether Ruby Glaze , a singer with whom Kate McTell recorded in 1932 , is the same person as Willie McTell .
S2: There is some uncertainty about whether Ruby Glaze , a singer with whom Willie McTell recorded 1932 , is the same person as Kate McTell .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Santha died on 11 April 1981 from a heart attack shortly after his son Jagath drowned under mysterious circumstances in a swimming pool .
S2: Shortly after his son , Jagath , drowned in a swimming pool under mysterious circumstances , he died of a heart attack on 11 April 1981 .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: In bioinformatics , short indexes are very important in the sequence assembly of inverted fragments of sequenced DNA .
S2: In bioinformatics , inverted indices in the sequence assembly of short fragments of sequenced DNA are very important .

Do S1 & S2 convey the same information?

A:
no