Clean Microscope<br>Viktor could not get his microscope to focus. His professor came to help. His professor also could not get it to focus. The professor wiped the lens with a solvent. He was then able to focus the lens.
The professor was not able to fix the microscope either.
( z1 possible :polarity - :ARG1 ( z2 fix :ARG0 ( z3 professor ) :ARG1 ( z4 microscope ) ) :mod ( z5 either ) )