<http://webisa.webdatacommons.org/266542938>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<yale.edu> .
<http://webisa.webdatacommons.org/266542938>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/63224730>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/266542938> .
<http://webisa.webdatacommons.org/266542938>	<http://www.w3.org/ns/prov#value>	"In other words, if railroads were more expensive than alternative forms of transportation, namely carriages and wagons, they would not have been built." .