#bituminous_coal__soft_coal  rich in tarry hydrocarbons; burns readily with a smoky yellow flame
  supertype:  coal  fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
  subtype:  cannel_coal  a bituminous coal that burns with a luminous flame
  subtype:  sea_coal__seacoal  pulverized bituminous coal; used as a foundry facing

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