People gathered outside of a church on the stairs.
There are people gathered at the chruch
Outside of a church on the stairs is rephrasing of at the church.
exists e1 x1 x2 x3.(n_stair(x3) & of(e1,x2) & on(x2,x3) & n_church(x2) & r_outside(e1) & Actor(e1,x1) & v_gather(e1) & n_people(x1))
exists p1 x1 x4.(n_chruch(x4) & exists e1 x2 x3.((x1 = x2) & at(e1,x4) & Theme(e1,x3) & v_gather(e1) & (x2 = x3) & n_people(x2)))