About: http://webisa.webdatacommons.org/241866233

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	For example, at the timing when the front of a toy train passes through, i.e. the timing when the first wheel is detected, the signal light is switched from yellow to red.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com