<http://webisa.webdatacommons.org/37208308> <http://www.w3.org/ns/prov#wasQuotedFrom> <cmu.edu> . <http://webisa.webdatacommons.org/37208308> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/394520003> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/37208308> . <http://webisa.webdatacommons.org/37208308> <http://www.w3.org/ns/prov#value> "Users found it unnatural to maneuver, and some muscles, such as biceps and back muscles, were being over used." .