[
  {
    "type": "MONSTER_FACTION",
    "name": "leech",
    "base_faction": "insect",
    "neutral": [ "bot" ],
    "by_mood": [ "zombie" ]
  },
  {
    "type": "MONSTER_FACTION",
    "name": "vampirics",
    "base_faction": "mammal",
    "neutral": [ "small_animal" ],
    "by_mood": [ "zombie" ]
  }
]