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: Keeping
a
tally
of
phones
loved
and
lost
stalled
around
i
Phone
number
13
,
two
summers
ago
.
Answer: 
Keeping:O
a:O
tally:O
of:O
phones:O
loved:O
and:O
lost:O
stalled:O
around:O
i:O
Phone:O
number:O
13:O
,:O
two:O
summers:O
ago:O
.:O