Problem: S1: Only one percent of blue diamonds are of this type , and most are natural to grey .
S2: Only one percent of the blue diamonds are of this type , and most are grey to natural .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: This practice has its roots in the traditions regarding the Danish caps of the black students .
S2: This practice has its roots in the traditions of the black caps of the Danish students .

Do S1 & S2 convey the same information?

A: no

Problem: S1: His son Jon Spoelstra is a former National Basketball Association executive and his grandson Erik Spoelstra is the current head coach of the Miami Heat .
S2: His son Jon Spoelstra is a former manager of the National Basketball Association and his grandson Erik Spoelstra is the current coach of Miami Heat .

Do S1 & S2 convey the same information?

A:
yes