An older man is sitting at a table with a group of children and writing something down.
a man is outside and he is writing a letter
A man and children can sit at a table which can be inside instead of being outside. A man writing something down needn't be writing a letter.
exists e1 e2 s1 s2 s3 x1 x2 x3 x4 x5 x6.(a_down(s3) & Manner(e2,s3) & Theme(e2,x6) & Actor(e2,x5) & v_write(e2) & n_thing(x6) & n_man(x5) & r_more(s2) & a_older(s2) & Theme(s2,x5) & with(e1,x3) & of(x3,x4) & n_child(x4) & n_group(x3) & at(e1,x2) & n_table(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_write(e1) & n_letter(x2) & n_male(x1) & Theme(s1,x1) & a_outside(s1) & n_man(x1))