#pine  straight-grained durable and often resinous white to yellowish timber of any of numerous trees of the genus Pinus
  supertype:  #wood  the hard fibrous lignified substance under the bark of trees
  substance of:  #pine_tree
  subtype:  #knotty_pine  pine lumber with many knots; used especially for paneling and furniture
  subtype:  #white_pine.pine__whitepine  soft white wood of white pine trees
  subtype:  #yellow_pine.pine__yellowpine  hard yellowish wood of a yellow pine

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