A man is helping a girl sit on a large bicycle.
A father is helping is daughter.
A man can be helping a girl without him being her father, and her his daughter.
exists e2 e1 s1 x1 x2 x3 x4.(on(e2,x4) & n_bicycle(x4) & a_large(s1) & Theme(s1,x4) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x2) & v_help(e1) & n_girl(x3) & (x1 = x2) & n_man(x1))
exists e1 p1 x1 x2.(exists x3.((x1 = x3) & n_daughter(x3)) & Actor(e1,x2) & v_help(e1) & (x1 = x2) & n_father(x1))