With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Caesium
hydroxide
or
cesium
hydroxide
(
CsOH
)
is
a
chemical
compound
consisting
of
caesium
ions
and
hydroxide
ions
.
Caesium:other-chemicalthing
hydroxide:other-chemicalthing
or:O
cesium:other-chemicalthing
hydroxide:other-chemicalthing
(:O
CsOH:other-chemicalthing
):O
is:O
a:O
chemical:O
compound:O
consisting:O
of:O
caesium:other-chemicalthing
ions:other-chemicalthing
and:O
hydroxide:other-chemicalthing
ions:other-chemicalthing
.:O