A person with gray hair is painting in a public place surrounded by others who are also painting.
A person with gray hair is at home painting alone.
A person can not be in a public place and be at home and if they are surrounded by others they are not alone.
exists p1 s1 x1 x2.(exists e1 p2 s2 s3 x3 x4 x5 x6 x7.((x1 = x3) & in(x3,x4) & Actor(e1,x6) & a_also(s3) & Manner(p2,s3) & exists x8.((x7 = x8) & n_painting(x8)) & (x6 = x7) & -(x6 = x1) & n_person(x6) & Theme(e1,x5) & v_surround(e1) & (x4 = x5) & n_place(x4) & a_public(s2) & Theme(s2,x4) & n_paint(x3)) & n_person(x1) & with(x1,x2) & n_hair(x2) & a_gray(s1) & Theme(s1,x2) & n_person(x1))
exists p1 s1 x1 x2.(exists x3 x4.(at(x1,x3) & r_alone(x3) & n_painting(x3) & of(x3,x4) & n_home(x4)) & with(x1,x2) & n_hair(x2) & a_gray(s1) & Theme(s1,x2) & n_person(x1))