With no explanation, label each line with "location-GPE", "O", "other-law", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
A
similarly
discriminatory
approach
to
border
control
was
taken
in
Canada
through
the
Chinese
Immigration
Act
of
1885
,
imposing
what
came
to
be
called
the
Chinese
head
tax
.
A:O
similarly:O
discriminatory:O
approach:O
to:O
border:O
control:O
was:O
taken:O
in:O
Canada:location-GPE
through:O
the:O
Chinese:other-law
Immigration:other-law
Act:other-law
of:other-law
1885:other-law
,:O
imposing:O
what:O
came:O
to:O
be:O
called:O
the:O
Chinese:O
head:O
tax:O
.:O