Assertion: soldering iron's heating element | /r/HasProperty | inside the sleeve
Facets:
value: for such tips
type: PURPOSE
Source sentences:
text: It is absolutely normal that a soldering iron becomes brownish due to oxidation around the heating element - which for such tips should be inside the sleeve.
text: If the iron body would be inserted completely, the heating element indicated by the brownish discoloration would be inside the sleeve as it should, and the iron had a more "natural" length.