Assertion: tripod's head | /r/HasProperty | purchased
Facets:
value: separately
type: MANNER
value: often
type: TEMPORAL
Source sentences:
text: The head and the tripod can be purchased separately—but purchasing them as a system reduces the chances of mismatching your gear.
text: The camera can often be mounted directly to the top, however it limits all composition to be horizontal, so a head is often purchased that allows the camera to swing 90 degrees for vertical compositions.
text: A tripod head must be purchased separately.