Assertion: cornet's number | /r/CapableOf | begin with the letter
Facets:
Source sentences:
text: Does the serial number begin with the letter G, followed by another letter and then followed by 6 digits?
text: Does the serial number begin with the letters P, R or S, followed by another 5 digits (no space)?
text: Does the serial number begin with the letter H, followed by another letter and then followed by 6 (not 5) digits?