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: But
he
concurs
with
Shortens
'
assessment
and
says
everyone
he
knows
is
worried
about
job
security
.
Answer: 
But:O
he:O
concurs:O
with:O
Shortens:B-PER
':O
assessment:O
and:O
says:O
everyone:O
he:O
knows:O
is:O
worried:O
about:O
job:O
security:O
.:O