Recognizing number entitites in RASA

How would I recognize number entities in RASA-nlu Lets say I want to capture age of user or capture number of litres of water does he drink everyday. The users answers with 34 or 54 yrs, just a number. How do I detect the number value. If I use ner_duckling will it also work with general entity recognition as well.

duckling provides you a dimension number as well, keep in mind that it will only tell you the number, won’t know if it means age or amount of water. Also use ner_duckling_http (more standardised now)

Will it be able to detect normal word based entities as well?

Take a look here at the dimensions