A man is at a train station reading a book.
A businessman reads a book while waiting for his train after work.
Not every man is a businessman.The fact that a man is at train station doesn't imply that he is waiting for a train and he is after work.
exists p1 x1.(exists e1 x2 x3 x4 x5.(at(x1,x2) & Theme(e1,x5) & Actor(e1,x4) & v_read(e1) & n_book(x5) & (x2 = x4) & n_station(x2) & of(x2,x3) & n_train(x3)) & n_man(x1))
exists e1 e2 x1 x2 x3 x4.(while(e1,e2) & after(e2,x4) & n_work(x4) & for(e2,x3) & n_train(x3) & of(x3,x1) & n_male(x1) & Actor(e2,x1) & v_wait(e2) & Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_book(x2) & n_businessman(x1))