private function validateCommon( $taxonomy, $contextParameters )
	{
		// if ( ! $this->validateParameters( $taxonomy, $contextParameters ) )
		// {
		// 	return false;
		// }

		if ( ! $this->validateCustomFunction( $taxonomy ) )
		{
			return false;
		}

		if ( ! $this->validateVariableSets( $taxonomy, $contextParameters ) )
		{
			return false;
		}

		if ( ! $this->validateConsistencyAssertions( $taxonomy ) )
		{
			return false;
		}

		// validate default dimensions in instances and accumulate multi-instance-default dimension aspects (really, look in the contexts)

		// check for variable set dependencies across output instances produced

		return true;
	}