206399
Captain George F. Elliott ( later Commandant of the Marine Corps ) , who had succeeded to command of the Marine Detachment , signaled the Dolphin to shell the Spanish position ; but because the sender was not clearly visible , the message was misinterpreted , and the vessel began dropping shells on a small detachment of Marines who were en route to join the fight .
 George F. Elliott, Marine Corps, Marine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 George F. Elliott, Marine Corps, Marine