A kid swings with his feet up in the air in a forest.
A kid is playfully swinging in a forest while jumping in the air.
Someone who swings implies they are playfully swinging. Someone with their feet up in the air may be jumping in the air.
exists x1 x2 x3 x4 x5.(n_air(x4) & a_topic(x1) & n_up(x1) & in(x1,x4) & in(x4,x5) & n_forest(x5) & with(x1,x3) & n_foot(x3) & of(x3,x1) & n_male(x1) & n_swing(x1) & of(x1,x2) & n_kid(x2))
exists e1 e2 s1 x1 x2 x3.(n_air(x3) & while(e1,e2) & in(e2,x3) & Actor(e2,x1) & v_jump(e2) & a_playfully(s1) & Manner(e1,s1) & in(e1,x2) & n_forest(x2) & Actor(e1,x1) & v_swing(e1) & n_kid(x1))