curl -X POST -d '[["This is a test.", "How is this a test?","A test, this is."], "xxBeGiN142xx", "xxEnD142xx", "data://.algo/temp/trigrams.txt"]' -H 'Content-Type: application/json' -H 'Authorization: Simple YOUR_API_KEY' https://api.algorithmia.com/v1/algo/ngram/GenerateTrigramFrequencies/0.1.1