sudo chown <username> main.m

sudo chflags nouchg main.m

chflags noschg main.m

ls -lO@e main.m

--------:~ -------$ sudo chown -R --------- /System/Library/PrivateFrameworks/SpeechDictionary.framework/Versions/A
chown: /System/Library/PrivateFrameworks/SpeechDictionary.framework/Versions/A/Resources/HomophonesEng: Operation not permitted

----------:~ -------$ ls -lO@e /System/Library/PrivateFrameworks/SpeechDictionary.framework/Versions/A/Resources/HomophonesEng
-rw-r--r--  1 root  wheel  restricted,compressed 88338 Sep 18  2015 /System/Library/PrivateFrameworks/SpeechDictionary.framework/Versions/A/Resources/HomophonesEng