With no explanation, label each line with "O", "product-software", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Cygwin
consists
of
a
library
that
implements
the
POSIX
system
call
API
in
terms
of
Windows
system
calls
,
a
GNU
development
toolchain
(
including
GCC
and
GDB
)
to
allow
software
development
,
and
running
of
a
large
number
of
application
programs
equivalent
to
those
on
Unix
systems
.
Cygwin:product-software
consists:O
of:O
a:O
library:O
that:O
implements:O
the:O
POSIX:product-software
system:O
call:O
API:product-software
in:O
terms:O
of:O
Windows:O
system:O
calls:O
,:O
a:O
GNU:product-software
development:O
toolchain:O
(:O
including:O
GCC:product-software
and:O
GDB:product-software
):O
to:O
allow:O
software:O
development:O
,:O
and:O
running:O
of:O
a:O
large:O
number:O
of:O
application:O
programs:O
equivalent:O
to:O
those:O
on:O
Unix:O
systems:O
.:O