Problem: S1: The first patented air data computer in the USA was developed by John H. Andresen in February 1971 .
S2: The first air data computer developed in the USA was patented by John H. Andresen in February 1971 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: In South Carolina the law only applies to minors under 16 , and in Delaware to minors under 17 .
S2: In South Carolina , the law applies only to minors under 16 and in Delaware to minors under 17 years of age .

Do S1 & S2 convey the same information?

A: yes

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

Do S1 & S2 convey the same information?

A:
no