input: Nord_(Year_of_No_Light_album) | genre | Sludge_metal Sludge_metal | musicSubgenre | Southern_sludge Sludge_metal | musicSubgenre | Stoner_sludge Nord_(Year_of_No_Light_album) | genre | Post-metal
target: The album Nord by Year of No Light is sludge metal and post metal genre. Southern sludge and Stoner sludge are subgenres of sludge metal.
references: The album Nord by Year of No Light is sludge metal and post metal genre. Southern sludge and Stoner sludge are subgenres of sludge metal. The genre of the album Nord is sludge metal and post metal. Southern sludge and Stoner sludge are both subgenres of sludge metal. The album Nord by Year of No Light falls under the post-metal genre and the sludge metal genre. Sludge metal includes the subgenres southern sludge and stoner sludge.