Problem: S1: Until 1971 the Southern Pacific Railroad operated from its Third and Townsend Depot commuter trains to Los Angeles and long distance trains to San Jose .
S2: Until 1971 , the Southern Pacific Railroad operated from its Third and Townsend depots public trains to San Jose and long distance trains to Los Angeles .

Do S1 & S2 convey the same information?

A: no

Problem: S1: He devoted the work to his friend , the violinist Fritz Kreisler , and wrote to another friend , the composer Nikolai Medtner , on December 21 , 1931 :
S2: He dedicated this work to his friend , the violinist Nikolai Medtner , and wrote to another friend , the composer Fritz Kreisler , on 21 December 1931 :

Do S1 & S2 convey the same information?

A: no

Problem: S1: The Nordiques signed Free Agent Tony Currie from Edmonton Oilers , while Blake Wesley , who signed with the Toronto Maple Leafs , lost .
S2: The Nordiques signed free agent Tony Currie from the Edmonton Oilers , while they lost Blake Wesley , who signed with the Toronto Maple Leafs .

Do S1 & S2 convey the same information?

A:
yes