The question
All of us have heard a lot about generosity of Epic Games
He give to us a free license of Unreal Engine 4
He give to us a various free starter content in marketplace
He are ready to help developers and give money for their project
But, whether extends his generosity on component of Learn content?
Whether developers have the right to use a component of Learn content in their commercial project? And that will tell a representatives of Epic Games, if they see in commercial project some element, component or location from them Learn content? It would be quite good, if representatives of Epic Games give a some coment about this question. But the comment from knowing people, or the link to the document according to the license about Learn content, be useful too.
Your question is, if you are allowed to use the free content on the marketplace for your commercial projects? -> yes, you can use all content for your commercial and non-commercial projects 
Clearly:) But I ask and about some component of Learn content. For example a component of SciFiHallway. And whether the developers can use it?
ps Sorry about my english language. I am not speaking on english.
Just when you like to have an official statement -> in the FAQ under the marketplace tab: https://www.unrealengine/faq 
“What can I do with content I obtain from the Marketplace and Learn tab?
Besides using this content for learning, experimenting, and prototyping, you can also ship it in your own products too!”
Cheers, . I knew it was there somewhere, but I couldn’t find it.
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Just when you like to have an official statement -> in the FAQ under the marketplace tab: https://www.unrealengine/faq
Thanks a lot. It is interesting, to look at the official document
Thanks a lot.