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": ""}
  8&+ Cuba       4 6A Wood sample collected. Shrub 21â° 04.261' n, 76â° 01.679' w  BY)X   != heyne ex wall.        holguin 1^   g B2  bariay, detrã¡s de la casa de ebtrada del monumental natural, al lado de un manglar      d8Ls -76.0279833   Brq croton 
{"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "Heyne ex Wall.", "genus": "Croton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "Wood sample collected. Shrub", "associatedTaxa": "", "country": "Cuba", "stateProvince": "Holguin", "county": "", "municipality": "", "locality": "Bariay, detr\u00c3\u00a1s de la casa de ebtrada del Monumental Natural, al lado de un manglar", "decimalLatitude": "", "decimalLongitude": "-76.0279833", "verbatimCoordinates": "21\u00c2\u00b0 04.261' N, 76\u00c2\u00b0 01.679' W", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}