with open('input.txt', 'r') as f:
    s = f.read()

s = s.strip().split('\n')

elements   = dict([tuple(x.split(': ')) for x in s])
last_kinds = set()
out_str    = ''
for drug, kind in elements.items():
    if kind in last_kinds:
        continue
    same_kind_drugs = ' # '.join(sorted([x for x, y in elements.items() if y == kind]))
    row_str = '%s - %s' % (kind, same_kind_drugs)
    last_kinds.add(kind)
    if out_str:
        out_str += '\n'
    out_str += row_str
print(out_str)