Table 1. Keywords.

Keywords	Adjunct words
Battery	consum*, drain*, usage, kill*, hungry
Power	eat*, save, affect*, draw*, discharg*
Energy	heavy on, to* much, low*, wast*

Note:

Asterisks (*) in the adjunct words indicate a wildcard character that can represent one or more characters in the words (e.g. drain battery, draining battery, drains battery).