Data: message > if/elif to modify message based on trigger.calendar_event.summary

Configuration
1

hi,
im a noob and trying my first automation:
goal is to set a message based on the content of trigger.calendar_event.summary
I am trying to avoid using the integration (https://github.com/mampfes/hacs_waste_collection_schedule) and to use only the calendar-integration and a automation to trigger calendar events.
here i stuck and it won’t work:

service: notify.persistent_notification
data:
  message: >_
    {% if 'Bioabfall - Am Hühnerstein' in trigger.calendar_event.summary %}
      Biomüll 
    {% elif 'Altpapier - Am Hühnerstein' in trigger.calendar_event.summary %}
      Altpapier 
    {% elif 'Gelbe Säcke - Am Hühnerstein' in trigger.calendar_event.summary %}
      Gelber Sack 
    {% elif 'Restabfall - Am Hühnerstein' in trigger.calendar_event.summary %}
      Restmüll
    {% else %}
      nix
    {% endif %}

what am i doing wrong?

2
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