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 ":".
Tremolite
occurs
as
a
result
of
contact
metamorphism
of
calcium
and
magnesium
rich
siliceous
sedimentary
rocks
and
in
greenschist
facies
metamorphic
rocks
derived
from
ultramafic
or
magnesium
carbonate
bearing
rocks
.
Tremolite:O
occurs:O
as:O
a:O
result:O
of:O
contact:O
metamorphism:O
of:O
calcium:other-chemicalthing
and:O
magnesium:other-chemicalthing
rich:O
siliceous:O
sedimentary:O
rocks:O
and:O
in:O
greenschist:O
facies:O
metamorphic:O
rocks:O
derived:O
from:O
ultramafic:other-chemicalthing
or:O
magnesium:other-chemicalthing
carbonate:other-chemicalthing
bearing:O
rocks:O
.:O