Complex sentence: Burnett signed an NHL one way contract for the 2004--05 season plus a one year option but due to the 2004 NHL Lockout only played briefly as the player-assistant coach for the Danbury Trashers of the UHL in 2004.
Split into simpler sentences: Burnett signed an NHL one way contract for the 2004/05 season plus a one year option. Played briefly and was the player-assistant coach for the Danbury Trashers of the UHL in 2004.