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 ":".
Solar
Center
specializes
in
assessing
the
feasibility
of
combined
heat
and
power
(
CHP
)
systems
,
waste
heat
recovery
systems
,
and
district
energy
projects
.
Solar:O
Center:O
specializes:O
in:O
assessing:O
the:O
feasibility:O
of:O
combined:O
heat:O
and:O
power:O
(:O
CHP:O
):O
systems:O
,:O
waste:O
heat:O
recovery:O
systems:O
,:O
and:O
district:O
energy:O
projects:O
.:O