With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
There
have
been
various
accounts
of
the
circumstances
surrounding
the
composition
of
this
chorale
.
There:O
have:O
been:O
various:O
accounts:O
of:O
the:O
circumstances:O
surrounding:O
the:O
composition:O
of:O
this:O
chorale:O
.:O