A man in a fishing vest and rubber boots is talking to a vendor.
A salesman is trying to fish for another customer.
A man talking does not imply the man is a salesman.
exists e1 x1 x2 x3 x4 x5 x6 x7.(to(e1,x7) & n_vendor(x7) & Actor(e1,x1) & v_talk(e1) & in(x1,x2) & n_boot(x4) & of(x4,x6) & n_rubber(x6) & n_vest(x3) & of(x3,x5) & n_fishing(x5) & subset_of(x4,x2) & subset_of(x3,x2) & n_man(x1))
exists e1 p1 x1 x2.(n_customer(x2) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x3.(for(e2,x3) & n_customer(x3) & -(x3 = x2) & Actor(e2,x1) & v_fish(e2)) & n_salesman(x1))