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": ""}
  a2gm, Euphorbia hirta   Euphorbia N    Mexico 4>     / 1157889 3697 Et^   29.4053 (b     P>_ oak-grassland   >i euphorbiaceae  1xy l.   sonora F   [d stephen s. white  hirta  ~&/6  San Pedro de la Cueva 84~w  
{"catalogNumber": "1157889", "order": "", "family": "Euphorbiaceae", "scientificName": "Euphorbia hirta", "scientificNameAuthorship": "L.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "hirta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Stephen S. White", "recordNumber": "3697", "verbatimEventDate": "", "habitat": "Oak-grassland", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Sonora", "county": "San Pedro de la Cueva", "municipality": "", "locality": "", "decimalLatitude": "29.4053", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}