A person chopping wood in the winter.
The person is using a chainsaw to chop the wood.
A person could be using other types of tools to chop wood.  The fact that the person is chopping wood does not imply that the person is specifically using a chainsaw.
exists e1 x1 x2 x3 x4.(n_winter(x4) & a_topic(x1) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_chop(e1) & n_wood(x3) & (x1 = x2) & n_person(x1))
exists e1 p1 x1 x2 x3.(n_wood(x3) & n_person(x1) & Theme(e1,p1) & Recipient(e1,x2) & Actor(e1,x1) & v_use(e1) & exists e2.(Theme(e2,x3) & Actor(e2,x1) & v_chop(e2)) & n_chainsaw(x2))