Assertion: kaleidoscope's mirror | /r/MadeOf | cell
Facets:
value: on one end
type: LOCATION
value: often
type: TEMPORAL
Source sentences:
text: The reflectors (or mirrors) are usually enclosed in a tube, often containing on one end a cell with loose, colored pieces of glass or
text: The reflectors (or mirrors) are usually enclosed in a tube, often containing on one end a cell with loose, colored pieces of glass or