import re
s='"green lizards" like to sit "in the sun"'
rx = r'"([^"]+)"|\S+'
res = [x.group(1).split() if x.group(1) else x.group(0) for x in re.finditer(rx, s)]
print(res)
aW1wb3J0IHJlCnM9JyJncmVlbiBsaXphcmRzIiBsaWtlIHRvIHNpdCAiaW4gdGhlIHN1biInCnJ4ID0gciciKFteIl0rKSJ8XFMrJwpyZXMgPSBbeC5ncm91cCgxKS5zcGxpdCgpIGlmIHguZ3JvdXAoMSkgZWxzZSB4Lmdyb3VwKDApIGZvciB4IGluIHJlLmZpbmRpdGVyKHJ4LCBzKV0KcHJpbnQocmVzKQ==