Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
1970-07-28   h    z Along roads K-10 and K-15 surrounding the U.S. Naval Ammunition Depot     w g. l. webster & k. i. miller       -a TREE 7-8 M. CALYX GREEN.COROLLA AND STAMEN GREENISH-WHITE. FRUITS GREEN. SAP WATERY, STICKY. COMMON 1159757 DlXM   z CANAL ZONE   gs Croton draco subs. panamensis    panama canal zone   C draco  Euphorbiaceae $^U)@     croton   panama )<fMt   
{"catalogNumber": "1159757", "order": "", "family": "Euphorbiaceae", "scientificName": "Croton draco subsp. panamensis", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "draco", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "G. L. Webster & K. I. Miller", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1970-07-28", "habitat": "", "occurrenceRemarks": "Tree 7-8 m. Calyx green. Corolla and stamen greenish-white. Fruits green. Sap watery, sticky. Common", "associatedTaxa": "", "country": "Panama", "stateProvince": "Panama Canal Zone", "county": "Canal Zone", "municipality": "", "locality": "Along roads K-10 and K-15 surrounding the U.S. Naval Ammunition Depot", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}