There are a group of people in a pool and they have scuba gear on.
People are learning how to scuba dive.
The people in the pool may already be accomplished scuba divers and have no need of further learning.
exists e1 p1 s1 x1 x2 x3 x4.(a_on(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_have(e1) & n_gear(x3) & of(x3,x4) & n_scuba(x4) & n_thing(x2) & in(p1,x2) & n_pool(x2) & exists x5 x6.((x1 = x5) & of(x5,x6) & n_people(x6) & n_group(x5)))
exists e1 x1 x2.(Topic(e1,x2) & Actor(e1,x1) & v_learn(e1) & n_manner(x2) & exists e2 x3 x4.(Theme(e2,x4) & Actor(e2,x3) & v_scuba(e2) & n_dive(x4)) & n_people(x1))