117819
Classical mechanics For point masses Newton 's Law of Universal Gravitation states that there is a gravitational force between any two masses that is equal in magnitude for each mass , and is aligned to draw the two masses toward each other .
 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