Assertion: pen's ink | /r/ObjectUse | used in permanent markers
Facets:
Source sentences:
text: The erasable ink does not contain the toxic chemical compounds xylene and/or toluene as have been used in permanent markers, being less of a risk to being used as a recreational drug.
text: The erasable ink does not contain the toxic chemical compounds xylene and/or toluene as have been used in permanent markers, being less of a risk to being used as a recreational drug.