A person in a plaid shirt is writing on a piece of paper.
There is a person writing.
There is a person  is  a rephrasing  '' a person.''
exists e1 s1 x1 x2 x3 x4.(on(e1,x3) & of(x3,x4) & n_paper(x4) & n_piece(x3) & Actor(e1,x1) & v_write(e1) & in(x1,x2) & n_shirt(x2) & a_plaid(s1) & Theme(s1,x2) & n_person(x1))
exists p1 x1 x2 x3.((x1 = x2) & n_writing(x2) & of(x2,x3) & n_person(x3))