Sentence:  The safe at Ingleside District Station stands next to the <WSD>gum</WSD> machine in a narrow passageway that leads to Captain Harris 's office ( to the left ) , the lieutenant 's office ( farther along and to the left ) and the janitor 's supply closet ( straight ahead ) . 
Meaning of the word marked with <WSD> tags:  a preparation (usually made of sweetened chicle) for chewing