About: http://webisa.webdatacommons.org/148811447

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	Regardless, like any other business model, it is likely that it is based on supply and demand, that those lengths are the most popular with customers who want two weeks off work or have to fly to the start/end and want a gap in between.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com