<http://webisa.webdatacommons.org/prov/282648435> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/198184146> . <http://webisa.webdatacommons.org/198184146> <http://www.w3.org/ns/prov#wasQuotedFrom> <arizona.edu> . <http://webisa.webdatacommons.org/prov/296013930> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/198184146> . <http://webisa.webdatacommons.org/198184146> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/198184146> <http://www.w3.org/ns/prov#value> "According to the study, Mexican visitors spent about $2.7 billion in retail stores, hotels, restaurants and other spending-related activities during a 12-month period 2007-2008." .