code: public void setUnmappedAttributes(java.util.Collection<UnmappedAttribute> unmappedAttributes) {
          if (unmappedAttributes == null) {
              this.unmappedAttributes = null;
              return;
          }
  
          this.unmappedAttributes = new java.util.ArrayList<UnmappedAttribute>(unmappedAttributes);
      }
docs: <p>
  Attributes extracted from the input text that we were unable to relate to an entity.
  </p>
  
  @param unmappedAttributes
  Attributes extracted from the input text that we were unable to relate to an entity.