A fisherman is inside of a boat rowing while a bird is perched on the front of his boat.
A bird is near the fisherman
If a bird is on the front of his boat, then the bird must be near the fisherman while he is inside his boat.
exists p1 s1 x1 x5.(n_male(x5) & n_front(x5) & a_inside(s1) & Manner(p1,s1) & exists e1 p2 x2 x3.(of(x1,x2) & exists e2 x4.(on(e2,x5) & of(x5,x2) & Theme(e2,x4) & v_perch(e2) & n_bird(x4)) & n_boat(x2) & n_boat(x2) & of(x2,x5) & while(e1,p2) & Actor(e1,x3) & v_row(e1) & (x2 = x3)) & n_fisherman(x1))
exists p1 x1 x2.(n_fisherman(x2) & near(x1,x2) & n_bird(x1))