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: The
new
study
has
reduced
the
production
cost
from
$
US44.33
per
tonne
and
increased
the
project
’s
expected
annual
production
from
21.5
million
tonnes
per
year
to
24
million
.
Answer: 
The:O
new:O
study:O
has:O
reduced:O
the:O
production:O
cost:O
from:O
$:O
US44.33:O
per:O
tonne:O
and:O
increased:O
the:O
project:O
’s:O
expected:O
annual:O
production:O
from:O
21.5:O
million:O
tonnes:O
per:O
year:O
to:O
24:O
million:O
.:O