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": ""}
FABACEAE ER b   4 U CONTACT UM HERBARIUM   ;hH C. V. MORTONn & EMIL MAKRINIUS         PAJ= j.w. grear  X$ DC.    EXICO LaR    rhynchosia precatoria W  precatoria og  1933-04-01 ,Y8        
{"catalogNumber": "", "order": "", "family": "Fabaceae", "scientificName": "Rhynchosia precatoria", "scientificNameAuthorship": "Dc.", "genus": "", "subgenus": "", "specificEpithet": "precatoria", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "J.W. Grear", "recordedBy": "C. V. Morton & Emil Makrinius", "recordNumber": "", "verbatimEventDate": "1933-04-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}