lingQing in Japanese adds previous comma

When I try to create a lingq in Japanese, the lingQ system often tries to force any previous comma or period to be part of the lingQ word. This usually happens when there is a compound I am trying to lingQ that is made of 2 separate words like 週 末 for “week end”. Can I force the sytem to ignore the previous punctuation marks and not include them in the llingQ word?