About: http://webisa.webdatacommons.org/22176007

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They always nest withn counties, but they may be split by any sub-county geographic entity.Census block: A subdivision of a census tract, a block is the smallest geographic unit for which the Census Bureau tabulates 100-percent data.
http://www.w3.org/ns/prov#wasQuotedFrom	hiaguide.org