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": ""}
    c4 anton a. reznicek  William B. Drew 7<ta   boaceae s;    $ IN SAND  ` NEWAYGO  *$r)k Mich|gan 43.51863 ]qx    . O  big prairie desert "abundant..., forming flat mats." e    eY|x2 ischaemum  H7,XX -85.64255  K K` digitarQia ischaemum   6tX UNITED STATES  1947-09-20 a   ]i m292  -)/k digitaria Poales GyvC  1482256 Oz 
{"catalogNumber": "1482256", "order": "Poales", "family": "Poaceae", "scientificName": "Digitaria ischaemum", "scientificNameAuthorship": "", "genus": "Digitaria", "subgenus": "", "specificEpithet": "ischaemum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Anton A. Reznicek", "recordedBy": "William B. Drew", "recordNumber": "M292", "verbatimEventDate": "1947-09-20", "habitat": "in sand", "occurrenceRemarks": "\"abundant..., forming flat mats.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Newaygo", "municipality": "", "locality": "Big Prairie Desert", "decimalLatitude": "43.51863", "decimalLongitude": "-85.64255", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}