Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : An RGB color space is any additive color space based on the RGB color model. 
Answer : RGB color model
The RGB color space is based upon what?

Context : Veronika Martinek (born 3 April 1972) is a former professional female tennis player playing for Germany. 
Answer : female
Which sex is Veronika Martinek?

Context : Zafeirakis Theodosiou (Greek: Ζαφειράκης Θεοδοσίου) (1772 - 1822) was a Greek prokritos (πρόκριτος), meaning political leader of Greeks during Ottoman rule, of Naousa, Imathia and an important figure of the Greek War of Independence in the region of Macedonia. 
Answer : Greek War of Independence

In which war did Zafeirakis Theodosiou serve?