Get_slot returns Wrong Value

Rasa Open Source
1

I have 2 slots team_a and team_b. nlu.yml:

- intent: ask_last_match_between_teams
  examples: |
    - What was the last match between [Besiktas] (team_a) and [Fenerbahce] (team_b) ?

I use actions to answer this intent. here is my example sentence: "What was the last match between Konyaspor and Fenerbahce ?"

team_a should be Konyaspor and team_b should be Fenerbahce , but inside the ActionGetMatchResult class, I got this:

team_a None team_b Fenerbahce Extracted entities: [{'entity': 'team_b', 'start': 32, 'end': 41, 'confidence_entity': 0.7333658933639526, 'value': 'Konyaspor', 'extractor': 'DIETClassifier', 'processors': ['EntitySynonymMapper']}, {'entity': 'team_b', 'start': 46, 'end': 56, 'confidence_entity': 0.5637834668159485, 'value': 'Fenerbahce', 'extractor': 'DIETClassifier', 'processors': ['EntitySynonymMapper']}]

I don’t know why I don’t get any team_a value.

domain.yml:

entities:
  - team_a
  - team_b

slots:
  team_a:
    type: text
    mappings:
    - type: from_entity
      entity: team_a
  team_b:
    type: text
    mappings:
    - type: from_entity
      entity: team_b

note: there is no space between ] and ( . it will be link, if I don’t add space