In the list of tokens, identify 'Person', 'Location', and 'Organisation' and label each accordingly. If the entity spans multiple tokens, use the prefix B-PER, B-LOC, or B-ORG for the first token, and I-PER, I-LOC, or I-ORG for the subsequent tokens of that entity. The beginning of each separate entity should always be labeled with a B-PER, B-LOC, or B-ORG prefix. If the token does not fit into any of the three named categories, or is not a named entity, label it as 'O'. Each line should contain one token and its corresponding label, separated by a colon. Do not combine tokens on your own. The format for each line should be: 'token:label'.

Text: If
you
feel
your
login
credentials
are
being
used
by
a
second
party
,
contact
customer
service
at
800-
451-9998
for
assistance
in
changing
your
password
.
Answer: 
If:O
you:O
feel:O
your:O
login:O
credentials:O
are:O
being:O
used:O
by:O
a:O
second:O
party:O
,:O
contact:O
customer:O
service:O
at:O
800-:O
451-9998:O
for:O
assistance:O
in:O
changing:O
your:O
password:O
.:O