Problem: S1: Olympias is a reconstruction of an experimental trireme and an important example of ancient Athenian archaeology .
S2: Olympias is a reconstruction of an old Athenian trireme and an important example of experimental archaeology .

Do S1 & S2 convey the same information?

A: no

Problem: S1: In the midst of the memory flashback , Dr. Briggs makes enough noise to attract Dr. Krane .
S2: In the midst of the memory - flashbacks , Dr. Krane makes enough noise to attract Dr. Briggs .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The corps was first formed as the 43rd Rifle Corps in late 1945 and became the 137th Rifle Corps ( Second Formation ) in 1955 .
S2: The corps was first formed in 1945 as the 43rd rifle corps and became the 137th Gun Corps ( Second Formation ) in 1955 .

Do S1 & S2 convey the same information?

A:
yes