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 ":".
Re-parenting
window
managers
can
therefore
arrange
one
or
more
programs
into
the
same
window
,
and
can
easily
combine
tiling
and
stacking
in
various
ways
.
Re-parenting:O
window:O
managers:O
can:O
therefore:O
arrange:O
one:O
or:O
more:O
programs:O
into:O
the:O
same:O
window:O
,:O
and:O
can:O
easily:O
combine:O
tiling:O
and:O
stacking:O
in:O
various:O
ways:O
.:O