How to set an attribute while creating artifact using rest api

I am trying to create artifact having different attributes using rest api. Inorder to create the post message for artifact creation I need to know the RDF data of the allowed values of the attribute.


But however when I do a get on the url for a property definition of particular artifact type I get the following:

    <oslc:property>
      <oslc:Property>
        <oslc:valueType rdf:resource="http://open-services.net/ns/core#Resource"/>
        <oslc:propertyDefinition rdf:resource="https://localhost/rm/types/_BxEvkKQZEeGhApRcb1sFqA"/>
        <oslc:range rdf:resource="https://localhost/rm/types/_9VwXzUNVEeGavIlLsxV1tA"/>
        <oslc:occurs rdf:resource="http://open-service.net/ns/core#Zero-or-one"/>
        <dc:description rdf:parseType="Literal"></dc:description>
        <oslc:name>Pre-Build Assurance Required</oslc:name>
      </oslc:Property>
    </oslc:property>

and when I do the get on the property definition https://localhost/rm/types/_BxEvkKQZEeGhApRcb1sFqA I get the allowed values in

<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:dc="http://purl.org/dc/terms/"
    xmlns:calm="http://jazz.net/xmlns/prod/jazz/calm/1.0/"
    xmlns:oslc="http://open-services.net/ns/core#"
    xmlns:oslc_rm="http://open-services.net/ns/rm#">
  <oslc:Property>
    <oslc:valueType rdf:resource="http://www.w3.org/2001/XMLSchema#int"/>
    <oslc:allowedValues>
      <oslc:AllowedValues>
        <oslc:allowedValue rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >0</oslc:allowedValue>
        <oslc:allowedValue rdf:datatype="http://www.w3.org/2001/XMLSchema#int"
        >1</oslc:allowedValue>
      </oslc:AllowedValues>
    </oslc:allowedValues>
    <oslc:propertyDefinition rdf:resource="https://localhost/rm/types/_BxEvkKQZEeGhApRcb1sFqA"/>
    <oslc:range rdf:resource="https://localhost/rm/types/_9VwXzUNVEeGavIlLsxV1tA"/>
    <oslc:occurs rdf:resource="http://open-service.net/ns/core#Zero-or-one"/>
    <dc:description rdf:parseType="Literal"></dc:description>
    <oslc:name>Pre-Build Assurance Required</oslc:name>
  </oslc:Property>
</rdf:RDF>

However I am not getting the actual rdf data for the value 0 or 1. I tried doing get on the instance shape url but that gives only a list of attributes and urls for the allowed range. When doing a get on the allowed range what I get is

<rdf:RDF
    xmlns:dc="http://purl.org/dc/terms/"
    xmlns:oslc="http://open-services.net/ns/core#"
    xmlns:oslc_rm="http://open-services.net/ns/rm#"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:calm="http://jazz.net/xmlns/prod/jazz/calm/1.0/">
</rdf:RDF>