{
    "proposals": [
        {
            "join_class": "category",
            "column": "Iris.Species",
            "kind": "external_candidate",
            "entry_id": null,
            "name": "GBIF Backbone Taxonomy (species match)",
            "probable_url": "https://api.gbif.org/v1/species/match",
            "license_expectation": "CC0 (taxonomy backbone); to be verified",
            "join_story": "Matching the species labels to a formal taxonomy would attach accepted scientific names, genus and family ranks, and synonyms to each flower group. The labels would then link to other biodiversity records instead of staying free-text tags.",
            "teaches": "Shows whether the three measured groups are distinct, formally recognised species, or whether the labels are informal names that the measurements are being asked to separate."
        }
    ]
}