About: http://webisa.webdatacommons.org/435867354

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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	I have written 100,000's of lines of stata code and know how to use things such as local and global macros, run do files and change internal default options in STATA. I hold my own copy in a perpetual license. 30 Subjects: including
http://www.w3.org/ns/prov#wasQuotedFrom	purplemath.com