Assertion: boiler | /r/HasProperty | installed after april
Facets:
Source sentences:
text: It will be back-dated to April 2005, which means homeowners will have to produce a certificate to prove any boiler installed after April 1, 2005, is A or B rated and has been put in by a qualified Corgi installer.
text: A boiler installed after April 2005 (when condensing boiler regulations took effect from) is most probably a condensing unit.