About: http://webisa.webdatacommons.org/434015493

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	(iii) trading halts, suspensions, or other restrictions may be imposed with respect to particular classes or series of options; (iv) unusual or unforeseen circumstances may interrupt normal operations on an exchange; (v) the
http://www.w3.org/ns/prov#wasQuotedFrom	sec.gov