3918
Indigo head Heather Reisman says printed book here to stay , appetite for digitals may be waning ( via @ LindaNguyenTO ) http://t.co/JR9w94osrz
 Indigo, Heather Reisman, LindaNguyenTO
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Indigo, Heather Reisman, LindaNguyenTO