test.js

    const choices = [
        [['VANILLA'], ['coconut flakes', 'pecans'], ['marshmallow']],
        [['CHOCOLATE'], ['pecans'], ['chocolate']],
        [['STRAWBERRY', 'VANILLA'], ['pineapple', 'coconut flakes'], ['marshmallow']],
        [['STRAWBERRY'], ['pecans'], ['maple']],
        [['VANILLA'], ['coconut flakes', 'pineapple'], ['chocolate']],
        [['CHOCOLATE, STRAWBERRY'], ['pineapple', 'pecans'], ['butterscotch']],
    ];

    const keys = _.map(choices, c => {
        return hash(c);
    });

    db.query('choice/by_key', {
        keys: keys,
        include_docs: false,
    }, function (err, result) {
        if (err) {
            return console.error(err);
        }
        _.each(result.rows, (r, i) => {
            console.log(`${choices[i]} tastes ${r.value}`);
        })
    });