A man catches a bird from the partly cloudy sky with a long net.
A man catches a bird so he can study it.
Just because a man catches a bird doesn't necessarily mean the man catches a bird so he can study it.
exists e1 s1 s2 x1 x2 x3 x4.(n_sky(x3) & a_cloudy(s1) & Theme(s1,x3) & r_partly(x3) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & from(x2,x3) & with(x3,x4) & n_net(x4) & a_long(s2) & Theme(s2,x4) & n_bird(x2) & n_man(x1))
exists e1 p1 x1 x2.(exists e2 p2.(exists e3.(Theme(e3,x2) & Actor(e3,x1) & v_study(e3)) & Topic(e2,p2) & Actor(e2,x1) & v_can(e2)) & n_thing(x2) & n_male(x1) & so(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_catch(e1) & n_bird(x2) & n_man(x1))