def getVector3ByPrefixes(elementNode, prefixes, vector3):
 for prefix in prefixes:
  vector3 = getVector3ByPrefix(vector3, elementNode, prefix)
 return vector3

def getVector3ByPrefixes ( elementNode , prefixes , vector3 ) : for prefix in prefixes : vector3 = getVector3ByPrefix ( vector3 , elementNode , prefix ) return vector3
get vector3 from prefixes and xml element .