A number of people are climbing up scaffolding.
There are people climbing up the scaffolding.
A number of people are people.
exists e1 s1 x1 x2 x3.(a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_climb(e1) & n_scaffolding(x3) & of(x1,x2) & n_people(x2) & n_number(x1))
exists p1 x1 x4.(n_scaffolding(x4) & exists e1 s1 x2 x3.((x1 = x2) & a_up(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_climb(e1) & (x2 = x3) & n_people(x2)))