import re
l=['Milk (regular) (1 gallon)', 'Loaf of Fresh White Bread (1 lb)', 'Rice (white) (1 lb)', 'Eggs (regular) (12)', 'Local Cheese (1 lb)']
for s in l:
m = re.search(r'^[a-z]+(?:\s+[a-z]+)*', s, re.I)
if m:
print(m.group())
aW1wb3J0IHJlCmw9WydNaWxrIChyZWd1bGFyKSAoMSBnYWxsb24pJywgJ0xvYWYgb2YgRnJlc2ggV2hpdGUgQnJlYWQgKDEgbGIpJywgJ1JpY2UgKHdoaXRlKSAoMSBsYiknLCAnRWdncyAocmVndWxhcikgKDEyKScsICdMb2NhbCBDaGVlc2UgKDEgbGIpJ10KZm9yIHMgaW4gbDoKCW0gPSByZS5zZWFyY2gocideW2Etel0rKD86XHMrW2Etel0rKSonLCBzLCByZS5JKQoJaWYgbToKCQlwcmludChtLmdyb3VwKCkp