Problem: S1: Eoacmaea calamus is a species of sea snail , a true limpet , a marine gastropod mollusc in the Eoacmaeidae family , one of the families of true limpets .
S2: Eoacmaea calamus is a species of sea snail , a true limpet , a marine gastropod mollusk in the family Eoacmaeidae , one of the families of true limpets .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: Note : Pluto was classified as a planet when the Grand Tour was proposed and at the time '' New Horizons '' was launched .
S2: Pluto was classified as the planet when the Grand Tour was launched and was proposed at the time '' New Horizons '' .

Do S1 & S2 convey the same information?

A: no

Problem: S1: These whole cays gave their name to the northwestern bank , known in Spanish as Placer de los Roques .
S2: These northwestern cays gave their name to the whole bank , which is known as Placer de los Roques , in the Spanish language .

Do S1 & S2 convey the same information?

A:
no