# 1.
lookFile = open ('look.txt','r')
lookText = lookFile.read()
lookFile.close()
print(lookText)

# 2.
replacelist = [',','.',"'",'\n']
for c in replacelist:
    lookText = lookText.replace(c,' ')
print(lookText)

# 3.
print(lookText.split(' '))
looklist = lookText.split(' ')
print(looklist.count('do'))

# 4.
#lookset = set(looklist)
#print(lookset)