Assertion: designation's letter | /r/CapableOf | change to b
Facets:
Source sentences:
text: With the beginning of a new half-month on 16 January 2014, the first letter changed to "B", and the series started with 2014 BA .
text: With the beginning of a new half-month on 16 January 2014, the first letter changed to "B", and the series started with .