#!/usr/bin/env python

import sys
import re


listing={}

for line in sys.stdin:
    # print "((%s))"%line
    startpos=0
    name=''
    dupsfound=[]
    while True:
        m=re.match("\s*<(\w+)>",line[startpos:])
        if not m:
            break
        word=m.group(1)
        name+=' '+word
        startpos+=m.end()
    if startpos<=0:
        continue
    m=re.match(r'[^"]*"(.+)"',line)
    if not m:
        # shouldn't happen, but just in case
        val='???'
        print("couldn't make sense of line: "+line)
    else:
        val=m.group(1)
    if name in listing:
        if val != listing[name]:
            print("Exact conflict found: (%s )[%s][%s]"%(name,
                                                         listing[name], val))
        else:   # It's easier to read if lines have different indentations
            print("\tRedundant definition: (%s )[%s]"%(name, val))
    else:
        listing[name]=val

print("hit end")
# NOW check for prefix conflicts:
print("Checking prefixes.")
for key in listing:
    # print "Key: (%s)"%key
    pref=''
    # Careful when splitting.  The key always starts with a space.
    for word in key.split(" ")[:-1]: # chop the last one; that'll always match.
        # Skip the empty first entry
        if not word:
            continue
        pref+=" "+word
        # print "checking (%s)"%pref
        if pref in listing:
            print("Prefix conflict found: "
                  "(%s )[%s] vs (%s )[%s]"%(pref, listing[pref],
                                            key, listing[key]))