Problem with large DE numbers

[DanBmh]

Duckling has problems detecting large numbers in german.

For example "in fünfzig tausend sekunden" will be recognized, but with the correct spelling "in fünfzigtausend sekunden" it doesn't work.
Another example: "in vier tausend vier hundert tagen" does work but "in viertausendvierhundert tagen" doesn't.

According to spelling rules you should write numbers < 1.000.000 together. Like this:
3.333.333.333 = drei Milliarden dreihundertdreiunddreißig Millionen dreihundertdreiunddreißigtausenddreihundertdreiunddreißig

Tested at: https://duckling.wit.ai/ and with rasa/duckling container.