I just read that you should use a semicolon for a list where the list items contain commas. However, my sentence doesn't have a list as the main "list" only two items. Or do two items already count as a list?
My question: Is it ok (and understandable) to write:
These include physical techniques, such as phystechnique1, phystechnique2 and phystechnique3; and chemical techniques, such as chemtechnique1 or chemtechnique2.