Assertion: gravity bong | /r/MadeOf | glass
Facets:
value: often
type: TEMPORAL
Source sentences:
text: Professionally-produced gravity bongs are often made from glass, can be very attractive, and last a heck of a lot longer than the plastic contraptions described above.
text: Professionally-produced gravity bongs are often made from glass, can be very attractive, and last a heck of a lot longer than the plastic contraptions described above.