Returns all properties of uri whose values are literals, as well as all sio attributes uri has. If units are specified for any attributes, the units are also returned. The following properties are excluded: foaf:depiction, sioc:content, skos:definition, dc:abstract, dc:description, dc:summary, rdfs:comment, dcelements:description, <http://purl.obolibrary.org/obo/IAO_0000115>, prov:value, sio:hasValue, and <http://dbpedia.org/ontology/abstract>.