Problem: S1: Thornton introduced a fibrous structure zone T , which was observed at low argon pressures and characterized by closely packed other grains .
S2: Thornton introduced a fibrous structure zone T , which was observed at low argon pressures and characterized by densely packed further grains .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: The world 's first laser was developed in 1960 by the American scientists Nikolay Basov and Alexander Prokhorov and the Russian scientist Charles H. Townes .
S2: In 1960 , the world 's first laser was developed by American scientists Nikolay Basov and Alexander Prokhorov , and Russian scientist Charles H. Townes .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: They are exhibited for veneration in the Great Cathedral in summer and in the Old Cathedral in winter .
S2: They are exhibited in the Old Cathedral in the summer and in winter in the Great Cathedral .

Do S1 & S2 convey the same information?

A:
no