Assertion: ash | /r/HasAspect | higher percentage of calcium
Facets:
Source sentences:
text: 0.4 1.4 0.4 15.3 6.0 1.4 1.4 22.4 MgO 4.2 5.2 5.2 3.1 1.9 5.2 5.2 5.6 Na 2 O 1.0 0.7 0.8 1.0 0.6 0.7 1.2 1.7 K 2 O 0.3 0.2 0.2 - 0.1 0.1 0.1 1.1 Bottom ash or boiler slag derived from lignite or sub-bituminous coals has a higher percentage of calcium than the bottom ash or boiler slag from anthracite or bituminous coals.