[
  {
    "id": "avatar_dino_kills",
    "type": "event_transformation",
    "event_transformation": "avatar_species_kills",
    "value_constraints": { "species": { "equals": [ "species_id", "DINOSAUR" ] } }
  },
  {
    "id": "num_avatar_dino_kills",
    "type": "event_statistic",
    "stat_type": "count",
    "event_transformation": "avatar_dino_kills",
    "description": { "str": "dino killed", "str_pl": "dinos killed" }
  }
]
