A man sits and reads on a brick planter, while a woman sits at the base of a spiral staircase.
Two people are reading books.
Just because the woman sits on the spiral staircase,  it doesnt mean that she is reading.  Moreover,  there is nothing to imply that the man is reading books neither.
exists e1 e2 p1 p2 x1 x2 x3 x4 x6 x9.(n_base(x9) & n_base(x6) & exists e4 s2 x8 x10.(at(e4,x9) & of(x9,x10) & n_staircase(x10) & a_spiral(s2) & Theme(s2,x10) & Actor(e4,x8) & v_sit(e4) & n_woman(x8)) & while(e2,p2) & on(e2,x3) & n_planter(x3) & of(x3,x4) & n_brick(x4) & Actor(e2,x2) & v_read(e2) & n_man(x2) & exists e3 s1 x5 x7.(at(e3,x6) & of(x6,x7) & n_staircase(x7) & a_spiral(s1) & Theme(s1,x7) & Actor(e3,x5) & v_sit(e3) & n_woman(x5)) & while(e1,p1) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_book(x2) & n_people(x1) & card_eq_2(x1))