A person sits at a table outside drinking beer.
Somebody has an alcoholic beverage.
"Somebody" is another way to describe an unknown person and beer is a type of alcoholic beverage.
exists e1 x1 x2 x3 x4.(outside(e1,x3) & n_beer(x3) & of(x3,x4) & n_drinking(x4) & at(e1,x2) & n_table(x2) & Actor(e1,x1) & v_sit(e1) & n_person(x1))
exists e1 s1 x1 x2.(ne_nam_somebody(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_beverage(x2) & a_alcoholic(s1) & Theme(s1,x2))