Measure<br>John wanted to know how dogs could find electronic devices. He set up a test to measure the chemicals off-gassed by plastic. John used a sensitive device that could detect odors. He found plastic devices gave off a certain chemical as they decayed. John published his research in an esteemed science journal.
John wants to study hot dogs
John was studying dogs in this example. Hot dogs have nothing to do with it. Maybe his next study will be about hot dogs. Maybe not.
( z1 want :ARG0 ( z2 person :name ( z3 name :op "John" ) ) :ARG1 ( z4 study :ARG0 z2 :ARG1 ( z5 hot-dog ) ) )