About: http://webisa.webdatacommons.org/226513092

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	Nightmares can be related to physiological causes (e.g. high fever) or to psychological ones, such as trauma or stress.
http://www.w3.org/ns/prov#wasQuotedFrom	babylon.com