Problem: S1: However , Ambassador G. McMurtrie Godley , and his successor , William Sullivan , continued to oversee air strikes in Laos .
S2: However , Ambassador G. McMurtrie Godley and his successor , William Sullivan , continued to oversee the air attacks in Laos .

Do S1 & S2 convey the same information?

A: yes

Problem: S1: First , he worked in public relations for the American Jewish Committee in Boston , and until his retirement for the Combined Jewish Philanthropies of New York .
S2: Initially , he worked in public relations for the American Jewish Committee in New York and until his retirement for the combined Jewish philanthropy of Boston .

Do S1 & S2 convey the same information?

A: no

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

Do S1 & S2 convey the same information?

A:
no