A bare chested man with swimming goggles on his head with a group of swimmers behind him.
a man is leading a swim race
The man swimming does not imply that he is leading a swim race.
exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & with(x1,x2) & with(x2,x5) & of(x5,x6) & behind(x6,x1) & n_male(x1) & n_male(x1) & n_swimmer(x6) & n_group(x5) & on(x2,x4) & n_head(x4) & of(x4,x1) & n_goggles(x2) & of(x2,x3) & n_swimming(x3) & n_man(x1) & a_chested(s2) & Theme(s2,x1) & a_bare(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_lead(e1) & n_race(x2) & of(x2,x3) & n_swim(x3) & n_man(x1))