19989
He started his senior career with the reserve team of Stuttgarter Kickers in the Verbandsliga Württemberg in 1999 .
 Stuttgarter Kickers, Verbandsliga Württemberg
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Stuttgarter Kickers, Verbandsliga Württemberg