Three people are looking at sculptures made of rocks located on a body of water.
Three people doing research.
Just because people are looking at sculptures does not mean they are doing research.
exists e2 e3 e1 x1 x2 x3 x4 x5 x6 x7.(at(e1,x2) & of(e2,x4) & on(e3,x6) & of(x6,x7) & n_water(x7) & n_body(x6) & Theme(e3,x5) & v_locate(e3) & (x4 = x5) & n_rock(x4) & Theme(e2,x3) & v_make(e2) & (x2 = x3) & n_sculpture(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & n_research(x3) & (x1 = x2) & n_people(x1) & card_eq_3(x1))