With no explanation, label each line with "location-GPE", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
From
July–December
1918
she
worked
at
orphanages
in
Saratov
and
Petrovsk
.
From:O
July–December:O
1918:O
she:O
worked:O
at:O
orphanages:O
in:O
Saratov:location-GPE
and:O
Petrovsk:location-GPE
.:O