Two men in the foreground of a construction project are using trowels to smooth down dirt, while a man in the background is using some unidentifiable tool on the ground in front of him.
Workers are busy at their job.
The description of two men and a man imply multiple people, their actions imply they are working, therefore they are workers
exists e1 p1 x1 x2 x3 x4 x5 x8 x10.(n_male(x2) & n_ground(x10) & n_background(x8) & n_foreground(x2) & Theme(e1,p1) & Recipient(e1,x5) & Actor(e1,x1) & v_use(e1) & exists e2 p2 s1 x6.(exists e3 s2 x7 x9 x11.(on(e3,x10) & in(x10,x11) & of(x11,x2) & n_front(x11) & Theme(e3,x9) & Actor(e3,x7) & v_use(e3) & n_tool(x9) & a_unidentifiable(s2) & Theme(s2,x9) & in(x7,x8) & n_man(x7)) & while(e2,p2) & a_down(s1) & Manner(e2,s1) & Theme(e2,x6) & Actor(e2,x1) & v_smooth(e2) & n_dirt(x6)) & n_trowel(x5) & in(x1,x2) & of(x2,x3) & n_project(x3) & of(x3,x4) & n_construction(x4) & n_man(x1) & card_eq_2(x1))
exists s1 x1 x2.(at(s1,x2) & n_job(x2) & of(x2,x1) & n_thing(x1) & Theme(s1,x1) & a_busy(s1) & n_worker(x1))