http://localhost:8081/

{
    vocabularies(name: "weight") {
        ...vocabularyWithChildren
    }
}

fragment vocabulary on Vocabulary {
    name
}

fragment vocabularyWithChildren on Vocabulary {
    ...vocabulary
    children {
        ...vocabulary
        children {
            ...vocabulary
            children {
                ...vocabulary
                children {
                    ...vocabulary
                }
            }
        }
    }
}