Two foreground individuals in hard hats wear portable tanks as they walk behind someone in similar attire.
The two individuals just got done working and they were passing by some old friends
Similar attire does not mean they are old friends and hard hats does not mean they are done working.
exists e1 p1 s1 s2 s3 x1 x2 x3.(exists e2 s4 x4 x5.(behind(e2,x4) & in(x4,x5) & n_attire(x5) & a_similar(s4) & Theme(s4,x5) & n_person(x4) & Actor(e2,x1) & v_walk(e2)) & n_thing(x1) & as(e1,p1) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_tank(x3) & a_portable(s3) & Theme(s3,x3) & in(x1,x2) & n_hat(x2) & a_hard(s2) & Theme(s2,x2) & n_individual(x1) & a_foreground(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 e2 p1 s1 s2 x1 x2.(n_thing(x1) & n_individual(x1) & card_eq_2(x1) & by(e2,x2) & n_friend(x2) & a_old(s2) & Theme(s2,x2) & Actor(e2,x1) & v_pass(e2) & a_just(s1) & Manner(e1,s1) & exists e4 e3.(for(e3,e4) & Actor(e4,x1) & v_work(e4) & Actor(e3,x1) & v_do(e3)) & Topic(e1,p1) & Actor(e1,x1) & v_get(e1))