Three people stringing something across an expanse of sand.
The 3 people are out on the boat.
People on an expanse of sand cannot be the same people out on the boat.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_string(e1) & across(x3,x4) & of(x4,x5) & n_sand(x5) & n_expanse(x4) & n_thing(x3) & (x1 = x2) & n_people(x1) & card_eq_3(x1))
exists p1 s1 x1 x2.(n_boat(x2) & n_people(x1) & n_date(x1) & a_date_day_03(x1) & a_date_day_03(x1) & a_out(s1) & Manner(p1,s1) & on(x1,x2))