GraphQL typedef for JSONLD from mongodb not working

Question

I'm working in jsonld data and it contains following data

'schema:description': some String value,
  'schema:license': some String value,
  'sosa:Platform': some String value,
  'adiiot:MicrophoneID': some String value,

this is the jsonld data we are using for our app but we are facing issue while defining the typedefs for graphql but not able to set a type for jsonld key containg : in between please help me how i can define keys in typedef so i can fetch this data through graphql.

this is typedef im trying for this data

type Data {
    _id: String
}

type Query {
    hello: String
    getAllPosts: Data
    # getPost(id: ID): Post
  }

i'm using nodejs and appollo-graphql-server is their any way i can access jsonld data and show in graphql.