Zoo<br>When we were in Chicago my friends and I went to the zoo. We spent the whole day there, observing the animals. The animals in the zoo appeared to be happy enough. However, by the end of the day my friend was very sad. She realized that seeing caged animals made her depressed.
Animals are kept in cages in Chicago.
Zoo animals in Chicago are kept in cages, but not all animals. My statement implies every animal in Chicago animal is kept in cages, but that can't be determined from just this paragraph. 
( z1 keep :ARG1 ( z2 animal ) :location ( z3 cage ) :location ( z4 city :name ( z5 name :op "Chicago" ) ) )