Problem: S1: The grey suit was largely replaced in the 20th century by the dark blue or black suit .
S2: In the 20th century , the grey suit was largely replaced by the dark blue or black suit .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Sixteenth Air Force inactivated and Third Air Force took over the new role as Warfighting Headquarters for the USAFE .
S2: Sixteenth Air Force inactivated and Third Air Force assumed the new role as the Warfighting Headquarters for USAFE .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: A counterclockwise angle in one figure would correspond to a clockwise angle in the other .
S2: A counterclockwise angle in a figure would correspond to one clockwise angle in the other figure .

Do S1 & S2 convey the same information?

A:
yes