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: Still
,
Tesla
has
never
taken
on
the
big
automakers
in
the
mass
-
market
segments
where
they
’re
strongest
,
or
competed
in
such
a
crowded
field
.
Answer: 
Still:O
,:O
Tesla:B-ORG
has:O
never:O
taken:O
on:O
the:O
big:O
automakers:O
in:O
the:O
mass:O
-:O
market:O
segments:O
where:O
they:O
’re:O
strongest:O
,:O
or:O
competed:O
in:O
such:O
a:O
crowded:O
field:O
.:O