How to clean a sink drain<br>Remove your drain cover. Remove any covers that are on top of your drain. If you have a pop-up drain stopper, turn the cover counter-clockwise to remove it from the drain.
pop-up drain stopper must be removed
( z1 obligate :ARG2 ( z2 remove :ARG1 ( z3 stopper :mod ( z4 drain ) :mod ( z5 pop-up ) ) ) )