IN: Green is used as a backdrop for TV and electronic cinematography more than any other colour because television weathermen tended to wear blue suits. When chroma keying first came into use in television production, the blue screen that was then the norm in the movie industry was used out of habit, until other practical considerations caused the television industry to move from blue to green screens. Broadcast quality color television cameras use separate red, green and blue image sensors, and early analog TV chroma keyers required RGB component video to work reliably. From a technological perspective it was equally possible to use the blue or green channel, but because blue clothing was an ongoing challenge, the green screen came into common use. Newscasters sometimes forget the chroma key dress code, and when the key is applied to clothing of the same color as the background, the person would seem to disappear into the key. Because green clothing is less common than blue, it soon became apparent that it was easier to use a green matte screen than it was to constantly police the clothing choices of on-air talent. Also, because the human eye is more sensitive to green wavelengths, which lie in the middle of the visible light spectrum, the green analog video channel typically carried more signal strength, giving a better signal to noise ratio compared to the other component video channels, so green screen keys could produce the cleanest key. In the digital television and cinema age, much of the tweaking that was required to make a good quality key has been automated. However, the one constant that remains is some level of color coordination to keep foreground subjects from being keyed out.
can you wear blue on a green screen?

OPTIONS:
- no
- yes

OUT: yes

IN: The Old Testament is considered one of the most important and influential works of literature in world literature, and has provided inspiration for writers (both religious and secular) throughout subsequent history. In 1886, Friedrich Nietzsche wrote: ''In the Jewish Old Testament, there are men, things and speeches in so grand a style that Greek and Indian literature have nothing to compare to it. One stands with awe and reverence before these tremendous remnants of what man once was... The taste for the Old Testament is a touchstone of ''greatness'' and ''smallness''. To have glued this New Testament, a kind of rococo of taste in every respect, to the Old Testament to form one book... that is perhaps the greatest audacity and sin against the spirit that Europe has on its conscience.''
what book of the old testament is considered to have the greatest poetry?

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- no
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OUT: yes

IN: In the United States of America, Canada, and other countries participating in the North American Numbering Plan, a toll-free telephone number has one of the area codes 800, 833, 844, 855, 866, 877, and 888.
can i call an 866 number from canada?

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- yes

OUT: yes

IN: Costa Rica have qualified for five FIFA World Cup finals, namely in 1990, 2002, 2006, 2014 and 2018. Their best performance to date was in the 2014 edition, where they reached the quarter-finals.
has costa rica ever won a world cup?

OPTIONS:
- no
- yes

OUT:
no