A shirtless, bearded and mustached man peers through a home's doorway while a cat sits on the bottom step of the entrance to the home.
A cat is sitting on the steps outside
Someone/something that is sitting on the steps  can do so if sitting on any one of the steps.
(x)
exists e1 s1 x1 x2.(n_step(x2) & a_outside(s1) & Manner(e1,s1) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_cat(x1))