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: This
week
Morningstar
Investment
Management
senior
economist
Francisco
Torralba
and
corporate
bond
strategist
Dave
Sekera
offered
their
take
on
the
crisis
and
Sunday
's
referendum
.
Answer: 
This:O
week:O
Morningstar:B-ORG
Investment:I-ORG
Management:I-ORG
senior:O
economist:O
Francisco:B-PER
Torralba:I-PER
and:O
corporate:O
bond:O
strategist:O
Dave:B-PER
Sekera:I-PER
offered:O
their:O
take:O
on:O
the:O
crisis:O
and:O
Sunday:O
's:O
referendum:O
.:O