A dog is perched up against a tree looking at the top.
A dog chased a squirrel up a tree and is waiting for it to come back down.
A dog is perched up against a tree looking at the top does not indicate that a dog chased a squirrel up a tree and is waiting for it to come back down.
exists e1 e2 s1 x1 x2 x3 x4.(n_top(x4) & against(e1,x2) & at(e2,x4) & Actor(e2,x3) & v_look(e2) & (x2 = x3) & n_tree(x2) & a_up(s1) & Manner(e1,s1) & Theme(e1,x1) & v_perch(e1) & n_dog(x1))
exists e1 e2 p1 x1 x2 x3 x4.(Topic(e2,p1) & Actor(e2,x4) & v_wait(e2) & exists e3 s1 s2.(a_down(s2) & Manner(e3,s2) & a_back(s1) & Manner(e3,s1) & Actor(e3,x1) & v_come(e3)) & n_thing(x1) & n_dog(x4) & Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & up(x2,x3) & n_tree(x3) & n_squirrel(x2) & n_dog(x1))