48586
The singer also collaborated with fellow Filipino singers Nina , Sitti , Rachelle Ann Go , Sarah Geronimo , Sheryn Regis , Erik Santos and Mark Bautista .
 Nina, Sitti, Rachelle Ann Go, Sarah Geronimo, Sheryn Regis, Erik Santos, Mark Bautista
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nina, Sitti, Rachelle Ann Go, Sarah Geronimo, Sheryn Regis, Erik Santos, Mark Bautista