Problem: S1: Point Marsden was discovered by Matthew Flinders on 21 March 1802 and named after William Marsden , Second Secretary to the Admiralty .
S2: Point Marsden was discovered by Matthew Flinders on 21 March 1802 and named after William Marsden , Secretary of the Admiralty .

Do S1 & S2 convey the same information?

A: no

Problem: S1: In 1705 , an armatolos named Zisis Karademos led a Greek uprising against the local Ottoman garrison .
S2: An Armatolos named Zisis Karademos introduced a local uprising against the Greek - Ottoman garrison in 1705 .

Do S1 & S2 convey the same information?

A: no

Problem: S1: At the age of nine , Garcia appeared in his first concert and has since appeared alone or with his aunt and uncle in all parts of France .
S2: Garcia appeared in his first concert at the age of nine , and since then he performed alone or with his aunt and uncle in all parts of France .

Do S1 & S2 convey the same information?

A:
yes