perl -pe "s:^ +::" < destination.tsv | perl -pe 's/\n\n+/\|\|/sg' | perl -pe 's/\n/ /sg' | perl -pe 's/\|\|/\n/sg' | perl -pe 's/^(\S+)/$1 /sg' | perl -pe "s:^([^[]+?) *(?=\[):\1\t:" > new.tsv