import re
pattern = r"\s+\w+\s?[:([]\s*"
items = [
"SAD; Happy; ING:train coca",
"SAD; Happy; ING(train coca",
"SAD, Happy, ING[train coca"
]
for item in items:
print(re.sub(pattern, r' ', item))
aW1wb3J0IHJlCnBhdHRlcm4gPSByIlxzK1x3K1xzP1s6KFtdXHMqIgppdGVtcyA9IFsKICAgICJTQUQ7IEhhcHB5OyBJTkc6dHJhaW4gY29jYSIsCiAgICAiU0FEOyBIYXBweTsgSU5HKHRyYWluIGNvY2EiLAogICAgIlNBRCwgSGFwcHksIElOR1t0cmFpbiBjb2NhIgpdCgpmb3IgaXRlbSBpbiBpdGVtczoKICAgIHByaW50KHJlLnN1YihwYXR0ZXJuLCByJyAnLCBpdGVtKSk=