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<http://webisa.webdatacommons.org/437400515>	<http://www.w3.org/ns/prov#value>	"It entails learning to communicate by typing on a keyboard or pointing at letters, images, or other symbols to represent messages." .
<http://webisa.webdatacommons.org/prov/156740197>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/437400515> .
<http://webisa.webdatacommons.org/437400515>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<science20.com> .