Problem: S1: He played in 2007 in Chicago Lollapalooza , and in 2008 at Los Angeles at the FuckYeah Festival .
S2: He played in 2007 in Los Angeles Lollapalooza and 2008 at the FuckYeah Festival in Chicago .

Do S1 & S2 convey the same information?

A: no

Problem: S1: The main international airport is Yaounde Nsimalen International Airport and the second international airport at Douala International Airport .
S2: The main international airport is Douala International Airport and the second international airport at Yaounde Nsimalen International Airport .

Do S1 & S2 convey the same information?

A: no

Problem: S1: One night , Rick contacts Jill and informs her about Maddy 's sudden death .
S2: One night , Rick contacts Jill and informs her of Maddy 's sudden death .

Do S1 & S2 convey the same information?

A:
yes