About: http://webisa.webdatacommons.org/50409599

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	It may be that the phrase originated among hoboes and other vagabonds who hopped trains as a way of life and for whom gravy train would be a likely metaphor for an easy existence.
http://www.w3.org/ns/prov#wasQuotedFrom	word-detective.com