About: http://webisa.webdatacommons.org/212015405

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	The A and B refer to the spectral types of the stars, somewhat hotter than the Sun, and the e indicates that emission lines are present in their spectra, due to the glow from the gas around them.
http://www.w3.org/ns/prov#wasQuotedFrom	eurekalert.org