Assertion: pen | /r/RelatedTo | button-activated vape pens
Facets:
Source sentences:
text: They are the easiest type of vape pens to use, but offer less options in terms of functionality when compared to button-activated vape pens.
text: They are the easiest type of vape pens to use, but offer less options in terms of functionality when compared to button-activated vape pens.