Customers examine the menu of street cafe.
People are at a cafe for lunch.
People can be at a cafe looking at the menu for reasons other than eating lunch.
exists e1 x1 x2 x3 x4.(n_menu(x2) & Theme(e1,x2) & Actor(e1,x1) & v_examine(e1) & of(x2,x3) & n_cafe(x3) & of(x3,x4) & n_street(x4) & n_customer(x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & for(x2,x3) & n_lunch(x3) & n_cafe(x2)) & n_people(x1))