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": ""}
1971-08-29 O=    `t CROTON DRACO  4<9 warren d. stevens  MALPIGHIALES V    y@Y1j 1159748  NVdH9 NO DATA    =ttXI G. L. WEBSTER & K. I. MILLER ALONG ROAD FROM HWY 15 TO SANTA CRUZ (W OF TEPIC), ABOUT 9.9 MI W OF HWY 15 kd7&^  1490 K%`      euphorbiaceae u!  Nayari7 [jU     !b| tree 12-14 m tall andA about 30 cm DBH, flowers cream-white   ?(Eg in the mouth of a wet s7eep-sided ravine along roadside    / Croton  
{"catalogNumber": "1159748", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Croton draco", "scientificNameAuthorship": "", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "G. L. Webster & K. I. Miller", "recordedBy": "Warren D. Stevens", "recordNumber": "1490", "verbatimEventDate": "1971-08-29", "habitat": "in the mouth of a wet steep-sided ravine along roadside", "occurrenceRemarks": "tree 12-14 m tall and about 30 cm DBH, flowers cream-white", "associatedTaxa": "", "country": "", "stateProvince": "Nayarit", "county": "no data", "municipality": "", "locality": "along road from Hwy 15 to Santa Cruz (W of Tepic), about 9.9 mi W of Hwy 15", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}