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": ""}
   ) 5746  ,B pulchelum   2?x Genti)anaceae        MICHIGAN   @ ?BL moist #clay soil in median depressions with hordeum jubatum and puccinellia distans.  +z>4 (SW.) DRUCE 1980-07-31  s=      Centaurium pulchellum 4`3y       pA8u GENTIANALES United States a   t E+C cent4urium
{"catalogNumber": "", "order": "Gentianales", "family": "Gentianaceae", "scientificName": "Centaurium pulchellum", "scientificNameAuthorship": "(Sw.) Druce", "genus": "Centaurium", "subgenus": "", "specificEpithet": "pulchellum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "5746", "verbatimEventDate": "1980-07-31", "habitat": "Moist clay soil in median depressions with Hordeum jubatum and Puccinellia distans.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}