type Parent{
  PK: String!
  SK: String!
  children: [Child]
  data: String!
  type: String!
}

type Child {
  PK: String!
  SK: String!
  data: String!
  type: String!
  parentPK: String!
  parentSK: String!
}

type Mutation {
  createParentItem(
    PK: ID!,
    SK: String!,
    data: String!
  ): Parent

  createChildItem(
    PK: ID!,
    SK: String!,
    data: String!,
    parentPK: String!
    parentSK: String!
  ): Child
}

type Query{
  getParentWithChildren(PK: ID!, SK: ID!): Parent
}