Bayesian not working as expected

Configuration
1

here is my code but it is not working as expected. is there something wrong with my syntax?

  platform: "bayesian"
  name: "front_sensors"
  prior: 0.1
  probability_threshold: 0.6
  observations:
    - platform: "state"
      entity_id: "input_boolean.trip_wire2"
      prob_given_true: 0.8
      prob_given_false: 0.2
      to_state: "on"
    - platform: "state"
      entity_id: "input_boolean.front_approach"
      prob_given_true: 0.8
      prob_given_false: 0.2
      to_state: "on"
    - platform: "state"
      entity_id: "input_boolean.front_frigate"
      prob_given_true: 0.8
      prob_given_false: 0.2
      to_state: "on"

i have 3 sensors. if any 2 of them are turned on, then Bayesian sensor will be On too. instead, it is stuck in Off (not good). if only 1 is on, then Bayesian will be Off (good)

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