People working together fill wheelbarrows at a playground.
People are removing tire turf from a playground.
People filling wheelbarrows could be handling a variety of materials beyond removing tire turf.
exists e1 e2 s1 x1 x2 x3 x4.(at(e2,x4) & n_playground(x4) & Theme(e2,x3) & Actor(e2,x1) & v_fill(e2) & n_wheelbarrow(x3) & a_together(s1) & Manner(e1,s1) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_people(x1))
exists e1 x1 x2 x3 x4.(from(e1,x4) & n_playground(x4) & Theme(e1,x2) & Actor(e1,x1) & v_remove(e1) & n_turf(x2) & of(x2,x3) & n_tire(x3) & n_people(x1))