A boy is sitting at a table writing in his notebook.
A boy is sitting at a table because it helps him concentrate.
Just because he is at the table does not mean it is helping him concentrate.
exists e1 x1 x2 x3 x4.(in(e1,x4) & n_notebook(x4) & of(x4,x1) & n_male(x1) & at(e1,x2) & n_writing(x2) & of(x2,x3) & n_table(x3) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))
exists e1 p1 x1 x2.(exists e2 p2.(exists e3.(Actor(e3,x2) & v_concentrate(e3)) & Recipient(e2,p2) & Actor(e2,x1) & Topic(e2,x2) & v_help(e2)) & n_male(x2) & n_thing(x1) & because(e1,p1) & at(e1,x2) & n_table(x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1))