Assertion: electric guitar | /r/HasAspect | knob
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Additionally, it has many buttons, knobs, and switches that may be a little too much to comprehend if you are a beginner.
text: They will often have buttons, sliders, switches, or knobs that assist in controlling volume and sound manipulation.
text: Electric guitars have knobs, buttons, and switches, whereas acoustic guitars have none of those.