A old man is taking photos of nature, while a young couple makes out in the background.
Yosemite is crowded this time of year.
The old man taking pictures doesn't have to be in Yosemite to take pictures of nature. Also, the young couple does not have to be in Yosemite to make it crowded.
exists e1 p1 s1 x1 x2 x3 x5.(n_background(x5) & exists e2 s2 s3 x4.(a_out(s3) & Manner(e2,s3) & in(e2,x5) & Actor(e2,x4) & v_make(e2) & n_couple(x4) & a_young(s2) & Theme(s2,x4)) & while(e1,p1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & of(x2,x3) & n_nature(x3) & n_photo(x2) & n_man(x1) & a_old(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_time(x2) & ne_org_yosemite(x1) & of(e1,x3) & n_year(x3) & Time(e1,x2) & Theme(e1,x1) & v_crowd(e1))