A tribal man standing on the back of a covered boat riding through calm waters
A man standing on a boat
man standing on the back of a covered boat implies a man.standing on a boat.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5 x6.(n_back(x3) & a_topic(x1) & through(e1,x6) & n_waters(x6) & a_calm(s3) & Theme(s3,x6) & on(e1,x3) & of(x3,x4) & n_riding(x4) & of(x4,x5) & n_boat(x5) & a_covered(s2) & Theme(s2,x4) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1) & a_tribal(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_boat(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1))