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": ""}
   4303    euphorbia     B   United States  cP&F texas kerr mQX Q       Malpighiales b5]Go   ` Euphorbia angusta  GROWING WITH ASCLEPIAS AURICULATA & ERIGERON MODESTUS; FAIRLY COMMON ,    j engelm. 1244695  Jz<  6 miles e of hunt, limestone rocks along guadeloupe river 8PZ      /)i EUPHORBIACEAE G. L. WEBSTER & K. I. MILLER iT]   n.u< ANGUSTA 
{"catalogNumber": "1244695", "order": "Malpighiales", "family": "Euphorbiaceae", "scientificName": "Euphorbia angusta", "scientificNameAuthorship": "Engelm.", "genus": "Euphorbia", "subgenus": "", "specificEpithet": "angusta", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "G. L. Webster & K. I. Miller", "recordNumber": "4303", "verbatimEventDate": "", "habitat": "Growing with Asclepias auriculata & Erigeron modestus; fairly common", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Kerr", "municipality": "", "locality": "6 miles E of Hunt, limestone rocks along Guadeloupe River", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}