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": ""}
 sX1y 1521619   N?|JK D0RUD  /7XhX WALTER N. KOELZ  Rail track 4U  Convolvulu5 pilosellifolius ?    u Desr. [excluded]         m CONVOLVULUS    0Ya pilosellifolius        
{"catalogNumber": "1521619", "order": "", "family": "", "scientificName": "Convolvulus pilosellifolius", "scientificNameAuthorship": "Desr. [excluded]", "genus": "Convolvulus", "subgenus": "", "specificEpithet": "pilosellifolius", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "", "verbatimEventDate": "", "habitat": "Rail track", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Dorud", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}