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
project
’s
break
-
even
price
was
estimated
at
$
US40
per
tonne
,
compared
with
the
current
iron
ore
price
of
$
US55.70
.
Answer: 
The:O
project:O
’s:O
break:O
-:O
even:O
price:O
was:O
estimated:O
at:O
$:O
US40:O
per:O
tonne:O
,:O
compared:O
with:O
the:O
current:O
iron:O
ore:O
price:O
of:O
$:O
US55.70:O
.:O