Assertion: buoy's light | /r/HasProperty | powerful
Facets:
Source sentences:
text: Large Navigational Buoy (LNB or Lanby buoy) is an automatic buoy over 10 m high equipped with a powerful light monitored electronically as a replacement for lightships.  
text: Large Navigational Buoy (LNB or Lanby buoy) is an automatic buoy over 10m high equipped with a powerful light monitored electronically as a replacement for lightships.