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
Head
of
Public
Relations
Department
at
the
GSA
,
Mr
Kofi
Amponsah
-
Bediako
has
said
using
standards
in
business
operations
offers
a
set
of
powerful
business
and
marketing
propositions
for
organisations
of
all
sizes
.
Answer: 
The:O
Head:O
of:O
Public:B-ORG
Relations:I-ORG
Department:I-ORG
at:O
the:O
GSA:B-ORG
,:O
Mr:O
Kofi:B-PER
Amponsah:I-PER
-:I-PER
Bediako:I-PER
has:O
said:O
using:O
standards:O
in:O
business:O
operations:O
offers:O
a:O
set:O
of:O
powerful:O
business:O
and:O
marketing:O
propositions:O
for:O
organisations:O
of:O
all:O
sizes:O
.:O