Rasa NLU data , how to format currency


My training data for NLU have price values , a user can enter in any format like

$300,000 $300K 3,000,000 $3mm $3.5mm 4.5 4.5 mm 2.5mm $3,000,000 700000 how do I format data. With the current data if I go in and train my nlu model it says :

jsonschema.exceptions.ValidationError: 700000 is not of type 'string'. Failed to validate training data, make sure your data isor more information about the format visit https://rasa.com/docs/nlu/dataformat/

Maybe Duckling can help you.