About: http://webisa.webdatacommons.org/431366225

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	However, a number of challenges must be addressed including the development of appropriate equipment, methodology of tool design and fabrication, and optimization of machining parameters.
http://www.w3.org/ns/prov#wasQuotedFrom	umich.edu