You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

Q: Ben and Trevor make it home safely, and having finally coped with the loss of his son, Ben meets his estranged wife and gives her the divorce papers. He continues writing, his next novel being about Trevor. He narrates his writing the last few lines, informing the audience that he eventually quit as Trevor's caregiver, but the two remained friends. On Trevor's 21st birthday, Ben went into his room to find Trevor lying dead on the floor and his new caregiver crying on the floor next to him, only to find out Trevor was faking. The caregiver quit the next day.

A: did trevor die in the fundamentals of caring?
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Q: Humans have a four-chambered heart consisting of the right atrium, left atrium, right ventricle, and left ventricle. The atria are the two upper chambers. The right atrium receives and holds deoxygenated blood from the superior vena cava, inferior vena cava, anterior cardiac veins and smallest cardiac veins and the coronary sinus, which it then sends down to the right ventricle (through the tricuspid valve) which in turn sends it to the pulmonary artery for pulmonary circulation. The left atrium receives the oxygenated blood from the left and right pulmonary veins, which it pumps to the left ventricle (through the mitral valve) for pumping out through the aorta for systemic circulation.

A: is there a difference in structure of the two atria?
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Q: Chroma key compositing, or chroma keying, is a visual effects/post-production technique for compositing (layering) two images or video streams together based on color hues (chroma range). The technique has been used heavily in many fields to remove a background from the subject of a photo or video -- particularly the newscasting, motion picture and videogame industries. A color range in the foreground footage is made transparent, allowing separately filmed background footage or a static image to be inserted into the scene. The chroma keying technique is commonly used in video production and post-production. This technique is also referred to as color keying, colour-separation overlay (CSO; primarily by the BBC), or by various terms for specific color-related variants such as green screen, and blue screen -- chroma keying can be done with backgrounds of any color that are uniform and distinct, but green and blue backgrounds are more commonly used because they differ most distinctly in hue from most human skin colors. No part of the subject being filmed or photographed may duplicate the color used as the backing.

A:
can you use any color for a green screen?
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