Assertion: anthracite | /r/HasProperty | exploited by blockade runners
Facets:
value: in the american civil war
type: TEMPORAL
Source sentences:
text: Anthracite is also clean in the sense of "less smoke", a fact that was exploited by blockade runners in the American Civil War wishing to avoid detection and later on several railroads advertised the fact that they used Anthracite, as it meant less soot and smoke for the passengers (ever seen an image of people on a steam train?