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It is simplest to describe the algorithm for the case that the input is in general position , meaning that no two line segment endpoints or crossings have the same x-coordinate , no segment endpoint lies on another segment , and no three line segments cross at the same point .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None