What is referred to by '2 masted sailing ship'?

Based on the clue '2 main sects of this philosophical school were int...', what is the answer? Based on the clue '2 main types of aircraft are rotary wing like heli...', what is the answer? Based on the clue '2 major airports jfk laguardia lie on this island', what is the answer? Based on the clue '2 marble lions named patience fortitude guard the...', what is the answer? Based on the clue '2 members of this 70s ramblin man band died in bik...', what is the answer? Based on the clue '2 members of this florentine family catherine mar...', what is the answer? What is associated with: 2 men at the u of washingtons department of this won the 1992 nobel prize for studying cell pr… What is associated with: 2 men named sugar ray one became welterweight champ in 1946 the other in 1979?