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
is
because
the
Cupertino
giant
makes
sure
that
each
and
every
app
that
gets
listed
on
the
store
has
to
pass
stringent
tests
.
Answer: 
This:O
is:O
because:O
the:O
Cupertino:B-LOC
giant:O
makes:O
sure:O
that:O
each:O
and:O
every:O
app:O
that:O
gets:O
listed:O
on:O
the:O
store:O
has:O
to:O
pass:O
stringent:O
tests:O
.:O