Problem: S1: The pterostigmata of the white males are almost immature .
S2: The pterostigmata of males immature are almost white .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Then Tyrone tells him who Tommy is .
S2: Tyrone then tells him who Tommy is .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: It is endemic to San Luis Obispo County , California , where it is known only from the Pecho Hills southwest of San Luis Obispo in California .
S2: It is endemic in San Luis Obispo County , California , where it is only known by the Pecho Hills southwest of San Luis Obispo , California .

Do S1 & S2 convey the same information?

A:
yes