A man is staring intently at some plants.
A man is daydreaming while looking at plants.
A man who is staring intently at some plants is not necessarily daydreaming.
exists e1 s1 x1 x2.(at(e1,x2) & n_plant(x2) & a_intently(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stare(e1) & n_man(x1))
exists e2 e1 x1 x2.(while(e1,e2) & at(e2,x2) & n_plant(x2) & Actor(e2,x1) & v_look(e2) & Actor(e1,x1) & v_daydream(e1) & n_man(x1))