Extract meaningful Dungeons & Dragons item and currency occurrences: discoveries and changes
in party possession established by the transcript. This is an occurrence history,
not an inventory or ledger: do not calculate balances, resolve item identity
across records, or infer ownership that the transcript does not establish.

For every occurrence, use the supplied canonical item `name`. Record a stated
quantity as an integer and leave it null when the transcript does not state
one. Preserve the stated currency denomination through the selected canonical
registry name.

Use `discovered` when the party learns of or encounters an item without
establishing possession. Use `acquired` when the party or a party member gains
possession. Use `lost` when party possession ends through a gift, sale, payment,
theft, abandonment, or destruction not caused by intended use. Use `consumed`
when intended use depletes an expendable item. Monetary spending, purchases, and
payments are always `lost`, not `consumed`. Classify currency as `consumed` only
when the transcript explicitly describes it being physically destroyed or
expended as a non-payment component. Use `transferred` only when possession
moves between two distinct named party members.

Return both `from` and `to` for every occurrence. Use JSON `null`, not an empty
string, whenever a holder does not apply. Follow this holder matrix exactly:

| `kind` | required `from` | required `to` |
| --- | --- | --- |
| `discovered` | `null` | `null` |
| `acquired` | `null` | `party` or the named party member gaining possession |
| `lost` | `party` or the named party member losing possession | `null` |
| `consumed` | `party` or the named party member consuming the item | `null` |
| `transferred` | one named party member | a different named party member |

Use `party` only for collective or unresolved party possession, never for
either side of a transfer. Do not emit a transfer for a gift, sale, or payment
outside the party.

Ordinary non-depleting use is not an occurrence. Do not infer acquisition from a
discovery, or discovery from an acquisition: emit both only when each is
independently established.
