Problem: S1: The gate is still visible with the approximately high grooves in the granite stones for the hinges that are used when opening and closing the access .
S2: The gate is still visible , with the approximately high the grooves in the granite stones for the hinges used in opening and closing the access .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: In 1953 , he married the actress Gilda Neeltje , the sister of actress Diane Holland .
S2: In 1953 , he married the actress Diane Holland , sister of the actress Gilda Neeltje .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The first known European observation of Whidbey Island was during the Spanish expedition of Manuel Quimper and Gonzalo Lopez de Haro at the '' Princesa Real '' in 1790 .
S2: The first well-known Spanish sighting of Whidbey Island was at the '' Princesa Real '' during the European expedition of Manuel Quimper and Gonzalo Lopez de Haro .

Do S1 & S2 convey the same information?

A:
no