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 ":".
https
:
//doi.org/10.1029/2018GL081354
https:O
::O
//doi.org/10.1029/2018GL081354:O