kolme -kol-ko'e- gismu

x₁ is a quantity of/contains/is made of coal/peat/anthracite/bitumen from source x₂.

In notes:

tabno: x₁ is a quantity of/contains/is made of carbon/graphite/[diamond]/charcoal; x₁ is organic.
tarla: x₁ is a quantity of/contains/is made of tar/asphalt from source x₂.
kolgapci: x1 is a quantity of coal gas
selglagauko'e: x1 is a quantity of/contains/is made of coke from source x2
gaznatu: x₁ is a quantity of natural gas, a mixture of methane with smaller amounts of ethane, propane, butane, other gaseous hydrocarbons and petroleum deposits