Assertion: tip | /r/HasProperty | customary
Facets:
Source sentences:
text: But a tip of about 5% to 10%, depending on the type of service, is customary.
text: Other ‘informal’ situations where a tip is customary include the porter at the hotel who carried your bags; the concierge for booking a table at a local restaurant or who arranged a taxi for you; the person who washed your windscreen at the stop-light; the attendant at a gasoline station; the person (usually a student or retiree) packing your groceries at the local supermarket; and attendants keeping washrooms/restrooms clean (provided you did not pay to enter the facility.)