A few scuba divers gather in beautiful clear water.
the cat is alone
The subject is either a cat or scuba divers.
exists e1 s1 s2 s3 x1 x2 x3.(in(e1,x3) & n_water(x3) & a_clear(s3) & Theme(s3,x3) & a_beautiful(s2) & Theme(s2,x3) & Actor(e1,x1) & v_gather(e1) & n_diver(x1) & of(x1,x2) & n_scuba(x2) & a_few(s1) & Theme(s1,x1))
exists s1 x1.(n_cat(x1) & Theme(s1,x1) & a_alone(s1))