1486
When a body is acted upon by external contact forces , internal contact forces are then transmitted from point to point inside the body to balance their action , according to Newton 's third law of motion of conservation of linear momentum and angular momentum ( for continuous bodies these laws are called the Euler 's equations of motion ) .
 person: Newton; person: Euler
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Newton, Euler 
Answer:
 person: Newton; person: Euler