Although a proper interpretation of some results can be tricky[ 2 ], it has become commonplace for physics teachers and their students to compare the rolling speed of two different vegetables on an inclined plane.
(a proper interpretation of some results; can be; tricky) (it; has become; commonplace; T:for physics teachers and their students)
a proper interpretation of some results it
can be has become
tricky
commonplace T:for physics teachers and their students