Several different people sit underneath umbrellas, talking and drinking.
People attending  a concert  sitting under a tent and getting wasted.
the several individuals either sit underneath umbrellas, or they are sitting under a tent.
exists e2 e1 s1 x1 x2 x3 x4.(n_people(x2) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_talk(e2) & n_drinking(x4) & r_underneath(e1) & Time(e1,x3) & n_umbrella(x3) & Actor(e1,x1) & v_sit(e1) & -(x1 = x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e2 e1 e3 p1 x1 x2 x3 x4 x5.(exists s1.(Theme(s1,x5) & a_waste(s1)) & Topic(e3,p1) & Actor(e3,x5) & v_get(e3) & n_people(x5) & Theme(e2,x2) & Actor(e2,x1) & v_attend(e2) & under(e1,x4) & n_tent(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_concert(x2) & n_people(x1))