The chairman and his executive having sharing ideas of the company during break time at the company headquarters.
Two janitors are cleaning the restrooms after hours.
Sentence 1 is about the chairman and his executive at work, and the second sentence is about two janitors, clearly different people.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_headquarters(x9) & of(x9,x6) & n_company(x6) & n_company(x6) & n_chairman(x1) & a_topic(s1) & subset_of(x3,s1) & at(e1,x9) & Time(e1,x8) & n_time(x8) & during(e1,x7) & n_break(x7) & Theme(e1,x2) & Actor(e1,x4) & v_have(e1) & of(x2,x6) & n_idea(x2) & of(x2,x5) & n_sharing(x5) & (x3 = x4) & n_executive(x3) & of(x3,x2) & n_male(x2) & subset_of(x1,s1))
exists e1 x1 x2 x3.(n_restroom(x2) & after(e1,x3) & n_hour(x3) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & n_janitor(x1) & card_eq_2(x1))