import re
import sys

tag_pattern = re.compile(r'(<([^/\s>]+).*?/?>)')
att_pattern = re.compile(r'(([a-z]+)=[\'"])')
tags = {}

content = sys.stdin.read()
tag_matches = tag_pattern.findall(content)

for tag_match in tag_matches:
    if tag_match[1] not in tags:
        tags[tag_match[1]] = set()
        
    att_matches = att_pattern.findall(tag_match[0])
    for att_match in att_matches:
        tags[tag_match[1]].add(att_match[1])
        
for tag in sorted(tags.keys()):
    atts = ','.join(sorted(tags[tag]))
    print(f'{tag}:{atts}')