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": ""}
s.n. gt      5Nz  TEXAS  Zu FABACEAE  e NUTTALLIANUS Astragalus nttallianus var. trichocarpus j/>bH     p var.     4&!W ASTRAGALUS eman meyer  jQ$    P no data    :t TRICHOCARPUS  1502902 ^     _$V* Fabales 
{"catalogNumber": "1502902", "order": "Fabales", "family": "Fabaceae", "scientificName": "Astragalus nuttallianus var. trichocarpus", "scientificNameAuthorship": "", "genus": "Astragalus", "subgenus": "", "specificEpithet": "nuttallianus", "verbatimTaxonRank": "var.", "infraspecificEpithet": "trichocarpus", "identifiedBy": "", "recordedBy": "Eman Meyer", "recordNumber": "s.n.", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Texas", "county": "no data", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}