Problem: S1: '' Cortinarius rainierensis '' , described in 1950 by Alex H. Smith and Daniel Elliot Stuntz from material collected Mount Rainier National Park , is a synonym .
S2: '' Cortinarius rainierensis '' , described by Alex H. Smith and Daniel Elliot Stuntz from the Mount Rainier National Park material in 1950 , is a synonym .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: After Robert Child had died , Hortense Eldred G. Smith was married in 1977 .
S2: After Robert Child died , Hortense married Eldred G. Smith in 1977 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Bianca Maria Sforza was married to Maximilian on March 16 , 1494 .
S2: On March 16 , 1494 , Maximilian married Bianca Maria Sforza .

Do S1 & S2 convey the same information?

A:
yes