Men doing tree surgery or looking for bees.
Men are carefully at work.
Men must be carefully at work whether doing tree surgery or looking for bees.
(exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_surgery(x2) & of(x2,x3) & n_tree(x3) & n_man(x1)) | exists e2 x4 x5.(for(e2,x5) & n_bee(x5) & Actor(e2,x4) & v_look(e2) & n_man(x4)))
exists p1 s1 x1.(a_carefully(s1) & Manner(p1,s1) & exists x2.(at(x1,x2) & n_work(x2)) & n_man(x1))