Scores live on owners

A score <name> worth N line declares a scoring identity on the owner it appears under: the story header, a create block, a trait, or an action. award <name> grants it from any behavior body. Scoring is enabled once, with a use scoring line in the story header. Without it, score and award are compile errors.

create the prize marrow
  aka marrow
  in the Orangery
  states: entire, sliced
  score sliced-the-marrow worth 10

  A rosette-winning marrow of absurd size.

  on cutting it
    change it to sliced
    award sliced-the-marrow
    phrase marrow-sliced
  end on

Score identities are owner-scoped: two entities can each declare score fed worth 10 and they are different scores. Awards dedupe by identity, so awarding the same score twice grants it once; there is no need to guard award behind a first-time check. The full scoring model, including trait- and action-owned scores, is described elsewhere in the guide.