@Override
	public String getContextName(Collection<? extends Environmental> list, Environmental E)
	{
		if(list==null) 
			return E.name();
		final int number=getContextNumber(list,E);
		if(number<0) 
			return null;
		if(number<2) 
			return E.name();
		return E.name()+"."+number;
	}