Workers constructing a temporary structure.
The men are eating lunch.
Ones cannot be constructing and eating simultaneously.
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 e1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_lunch(x2))