Problem: S1: Other finalists included Wall Street Journal , New York , Vanity Fair , and National Geographic .
S2: Other finalists closed National Geographic , New York , Vanity Fair , and Wall Street Journal .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Two of these hostels are located in Delhi , each in Pune and Pimpri , near Mumbai .
S2: Two of these four hostels are located in Mumbai , each in Delhi and Pimpri , near Pune .

Do S1 & S2 convey the same information?

A: no

Problem: S1: Most transmitters have the heterodyne principle , so they also use frequency conversion units .
S2: Most transmitters use the heterodyne principle so that they also have frequency conversion units .

Do S1 & S2 convey the same information?

A:
no