What statement correctly describes the Authentication Service ion Oracle Digital Assistant?

Which two statements about message translation in a skill are true?

Consider the following excerpt from a dialog flow code where size is a context variable of value list entity type PizzaSize with values Small, Medium, and Large:

Which two events will occur when a user starts a new conversation with the sentence "Order a Large Pizza"?

You are advised to implement an 80/20 split with training and test utterances. This means that 80% of new utterances harvested from the conversation logs should be used as intent training utterances and 20% for testing.
Why is this a good practice?

You want your skill to prompt users for their first name. The name must then be used in the welcome message at the beginning of each bot-user session.
Your user interface guidelines require that each part of the name begin with a capital letter (for example, John Doe or John William Doe).
Which two BotML code examples print the username correctly if the name is provided as "jOhn William doe" or "JOHN doe"?