A child is doing an activity involving a circular disk with radiating lines on it (in red and blue, a glue stick, and cut-out numbers.
The child has a hard time understanding.
Just because the child is doing an activity doesn't mean he is having a hard time understanding.
exists e2 e1 e3 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12.(Theme(e3,x2) & Actor(e3,x1) & v_do(e3) & Theme(e2,x4) & Actor(e2,x3) & v_involve(e2) & subset_of(x12,x4) & n_number(x12) & a_cut-out(s4) & Theme(s4,x12) & subset_of(x5,x4) & with(x5,x6) & subset_of(x10,x6) & n_stick(x10) & of(x10,x11) & n_glue(x11) & subset_of(x7,x6) & Theme(s3,x9) & a_blue(s3) & (x7 = x9) & Theme(s2,x8) & a_red(s2) & (x7 = x8) & on(x7,x1) & n_thing(x1) & n_line(x7) & Actor(e1,x7) & v_radiate(e1) & n_disk(x5) & a_circular(s1) & Theme(s1,x5) & (x2 = x3) & n_activity(x2) & n_child(x1))
exists e1 s1 x1 x2 x3.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_understanding(x2) & of(x2,x3) & n_time(x3) & a_hard(s1) & Theme(s1,x2))