A electrician fixing or replacing lights in a office building wearing jeans and a black shirt.
A person is working.
An electrician is a person.  Fixing or replacing lights is a type of work.
(exists e1 x1.(Actor(e1,x1) & v_fix(e1) & n_electrician(x1)) | exists e3 e2 s1 x2 x3 x4 x5 x6 x7.(Theme(e3,x5) & Actor(e3,x2) & v_wear(e3) & subset_of(x7,x5) & n_shirt(x7) & a_black(s1) & Theme(s1,x7) & subset_of(x6,x5) & n_jeans(x6) & in(x2,x3) & n_building(x3) & of(x3,x4) & n_office(x4) & n_light(x2) & Actor(e2,x2) & v_replace(e2)))
exists e1 x1.(Actor(e1,x1) & v_work(e1) & n_person(x1))