<parentid>' . ( $this->revId2_1 + $i * self::$numOfRevs ) . '</parentid>
<timestamp>2012-04-01T16:46:05Z</timestamp>
<contributor>
<parentid>' . ( $this->revId2_1 + $i * self::$numOfRevs ) . '</parentid>
<timestamp>2012-04-01T16:46:05Z</timestamp>
<contributor>