input: Royalty-free

Royalty-free, or RF, refers to the right to use copyright material or intellectual property without the need to pay royalties or license fees for each use, per each copy or volume sold or some time period of use or sales.

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is royalty free the same as copyright free
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output: no
Question: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail. do you have to have a return address on an envelope

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Answer: no
IN: Cookies and cream (or cookies 'n cream) is a variety of ice cream and milkshake based on flavoring from chocolate cookies. Cookies and cream ice cream uses sweet cream ice cream (often vanilla) and chocolate cookies, especially chocolate sandwich cookies, chocolate biscuits with sweet, white creme filling.
is cookies and cream the same as oreo?

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OUT: no
What's the best answer to this question: is station 19 a grey's anatomy spin off?

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Answer: yes
Text: An irrelevant fact: Apparently Vermont is the only state capital in the U.S.A not to have a McDonalds. - Canderra 23:54, 18 October 2005 (UTC)

Question: is there a mcdonald's in montpelier vermont?

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Answer: no
Text: Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg. In chickens it is formed from the layers of secretions of the anterior section of the hen's oviduct during the passage of the egg. It forms around fertilized or unfertilized egg yolks. The primary natural purpose of egg white is to protect the yolk and provide additional nutrition for the growth of the embryo (when fertilized). Egg white consists primarily of about 90% water into which is dissolved about 10% proteins (including albumins, mucoproteins, and globulins). Unlike the yolk, which is high in lipids (fats), egg white contains almost no fat, and carbohydrate content is less than 1%. Egg whites contain about 56% of the protein in the egg. Egg white has many uses in food (e.g. meringue, mousse) and also many other uses (e.g. in the preparation of vaccines such as those for influenza).

Question: is all the protein in the egg white?

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Answer:
no