<http://schema.org/proficiencyLevel>	<http://schema.org/domainIncludes>	<http://schema.org/TechArticle> .
<http://schema.org/proficiencyLevel>	<http://www.w3.org/2000/01/rdf-schema#label>	"proficiencyLevel" .
<http://schema.org/proficiencyLevel>	<http://www.w3.org/2000/01/rdf-schema#comment>	"Proficiency needed for this content; expected values: 'Beginner', 'Expert'." .
<http://schema.org/proficiencyLevel>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#Property> .
<http://schema.org/proficiencyLevel>	<http://schema.org/rangeIncludes>	<http://schema.org/Text> .