Problem: S1: It was also announced in December 2011 that U-Dip would later make a return , joining a long list of objects dropped on New Year 's Eve at midnight .
S2: It was announced later in December 2011 that a U-Dip would also make a return to join a long list of objects that were dropped at midnight on New Year 's Eve .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Almost the whole area is part of the Sandia Mountain Wilderness , including the Cibola National Forest .
S2: Almost the whole area is part of the Cibola National Forest , including the Sandia Mountain Wilderness .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Pabawena wrote in 1949 to Utah Senator Arthur V. Watkins to report :
S2: Arthur V. Watkins wrote Utah - Senator Pabawena in 1949 to report :

Do S1 & S2 convey the same information?

A:
no