99070
In the late 2010 s , institutional investors including public pensions , began to take use portable alpha strategies again as " broader markets " became " challenging " , according to a 2019 BlackRock publication .
 BlackRock
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 BlackRock