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: 2

4:24
Now
watching
Up
next
Tony
Robbins
:
Pizza
is
key
to
retirement
for
millennials
Love
pizza
?
Answer: 
2:O
:O
4:24:O
Now:O
watching:O
Up:O
next:O
Tony:B-PER
Robbins:I-PER
::O
Pizza:O
is:O
key:O
to:O
retirement:O
for:O
millennials:O
Love:O
pizza:O
?:O