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": ""}
 meghalaya r4qu   ywY 1497623   D. Don (  1219 V!  east khasi hills hT @t  india B $   umran   j|   GD/x walter n. koelz     J^ke= 1949-04-11  f ? Forest  MICROCEPHALUM I  polygonum microcephalum *!m?   polygonum 3 fH   CARYOPHY[LLALES P >v     rv^V H 22v444  Polygonaceae pnP 
{"catalogNumber": "1497623", "order": "Caryophyllales", "family": "Polygonaceae", "scientificName": "Polygonum microcephalum", "scientificNameAuthorship": "D. Don", "genus": "Polygonum", "subgenus": "", "specificEpithet": "microcephalum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "22444", "verbatimEventDate": "1949-04-11", "habitat": "Forest", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Meghalaya", "county": "East Khasi Hills", "municipality": "", "locality": "Umran", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1219", "maximumElevationInMeters": ""}