def _property_name_to_value(entities):
 return {key: values[0] for (key, values) in _property_name_to_values(entities).iteritems()}

def _property_name_to_value ( entities ) : return { key : values [ 0 ] for ( key , values ) in _property_name_to_values ( entities ) . iteritems ( ) }
returns a a mapping of entity property names to a sample value .