gistfile1.txt

Existing data format:
((("Israel" "LOCATION")) (("has" "O") ("launched" "O") ("what" "O") ("it" "O") ("described" "O") ("as" "O") ("an" "O") ("open-ended" "O") ("and" "O") ("escalating" "O") ("offensive" "O") ("against" "O") ("the" "O") ("Hamas-ruled" "O")) (("Gaza" "LOCATION") ("Strip" "LOCATION")) (("," "O") ("as" "O") ("air" "O") ("strikes" "O") ("and" "O") ("naval" "O") ("gunfire" "O") ("hit" "O")) (("50" "NUMBER")) (("sites" "O")) (("overnight" "TIME")) (("." "O")))

Intended data format:
(("Israel" "LOCATION") ("has launched what it described as an open-ended and escalating offensive against the Hamas-ruled" "O") ("Gaza Strip" "LOCATION") (", as air strikes and naval gunfire hit" "O") ("50" "NUMBER") ("sites" "O") ("overnight" "TIME") ("." "O"))