Japanese Claim to Invent Baby Translator

Japanese researchers have developed a device they claim can translate the babbles of babies.

Really? Because I have a 15 month old and I’m pretty sure I already know what he’s saying. Mainly: “I want that.” “Let me have that.” “That’s mine.” “I claim that.” “Ooo, shiny! Give me!” “What’s that? It’s mine now.” “Give me, give me, give me.”

What I need is a device that translates English into baby. How exactly do you say “No, you can’t have that because it’ll kill you,” in baby babble?