private void clearRelation() {
		if (parents[Parent.PAPA.ordinal()] != null)
			if (parents[Parent.PAPA.ordinal()].removed)
				parents[Parent.PAPA.ordinal()] = null;
		if (parents[Parent.MAMA.ordinal()] != null)
			if (parents[Parent.MAMA.ordinal()].removed)
				parents[Parent.MAMA.ordinal()] = null;
		if (getPartner() != null)
			if (getPartner().removed)
				setPartner(null);
	}