kolme -kol-ko'e- gismu

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

See also tabno, tarla.


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.