1504
In the Dred Scott case of 1857 , the court under Chief Justice Roger B . Taney ruled that a slave had no claim to freedom just because he had lived in U . S . territories where slavery was not permitted .
 U . S ., U . S . territories, the court, Dred Scott, Chief Justice, Chief Justice Roger B . Taney, a slave, he
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 U . S ., U . S . territories, the court, Dred Scott, Chief Justice, Chief Justice Roger B . Taney, a slave, he