Workers constructing a temporary structure.
There are workers working on a project.
Workers constructing a temporary structure does not imply that workers working on a project.
exists e1 s1 x1 x2.(ne_nam_workers(x1) & Theme(e1,x2) & Actor(e1,x1) & v_construct(e1) & n_structure(x2) & a_temporary(s1) & Theme(s1,x2))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & on(e1,x4) & n_project(x4) & Actor(e1,x3) & v_work(e1) & (x2 = x3) & n_worker(x2))