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Over the course of six weeks , the investigator secretly filmed numerous incriminating scenes , including piglets being tossed into crates from across a room , impregnated sows held in pens impeded their ability to move , an unhealthy piglet being hit against a wall to euthanize it , and a sick sow being hung by a chain from a forklift until it choked to death .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None