import re

text = """\
Mr. Miyagi bought cheapsite.com for 1.5 million dollars, i.e. he paid a lot for it. Did he mind? Adam Jones Jr. thinks he didn't. In any case, this isn't true... Well, with a probability of .9 it isn't. 
"""
# Properly split the text
split_text = re.split(r'(?<=[^A-Z].[.?]) +(?=[A-Z])', text)

# Print the output
for word in split_text:
    print (word) 