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: "
But
what
that
also
means
is
that
there
could
be
a
rebalancing
between
those
four
mechanisms
,
those
current
likely
percentages
are
not
set
in
stone
.
Answer: 
":O
But:O
what:O
that:O
also:O
means:O
is:O
that:O
there:O
could:O
be:O
a:O
rebalancing:O
between:O
those:O
four:O
mechanisms:O
,:O
those:O
current:O
likely:O
percentages:O
are:O
not:O
set:O
in:O
stone:O
.:O