In order to run the script successfully, there are two steps missing from the GitHub readMe. Prior to "step 8", you must run the cell that initialize the actions1 and actions2 variables and the cell that concatenates them together. Or you may just run a new cell with actions = np.array(['hello', 'goodbye', 'thank you', 'how', 'are you', 'take care']) I apologize for any confusion.
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