Variable drives`Const`

drives: readonly [
    { id: "https://w3id.org/reo/type/drive/ram-head"; name: "ram head" },
    {
        id: "https://w3id.org/reo/type/drive/asynchronous";
        name: "asynchronous";
    },
] = ...

How the punches of a perforator were driven, after Phillips (2016, pp. 112 f.): all at once by one ram head, or each by a driver of its own. ontology/types.ttl defines them, and a test holds this list against it.