The Entity Recognition service expects a JSON azure video

Full Certification Question

The Entity Recognition service expects a JSON formatted submission. The following JSON document was submitted to the service for entity recognition. JSON "documents" : [ { "id" : "1" , "language" : "en" , "text" : "Microsoft was founded by Bill Gates and Paul Allen on April 4, 1975, to develop and sell BASIC interpreters for the Altair 8800." }, { "id" : "2" , "language" : "es" , "text" : "La sede principal de Microsoft se encuentra en la ciudad de Redmond, a 21 kilómetros de Seattle." } ] How many entries are present in this submission?