Assertion: sewing machine's number | /r/CreatedBy | model
Facets:
value: from a certain date
type: TEMPORAL
value: from location
type: OTHER
Source sentences:
text: Each number is corresponding to a model from a certain date, and even location.
text: Singer’s have always been marked with serial numbers ever since production began, with each number corresponding to a model from a certain date, and even location.