295730
This school had started much earlier and was attended by L. L. Zamenhof from 1869 to 1871 when his family then moved to Warsaw .
 L. L. Zamenhof
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 L. L. Zamenhof