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": ""}
      Persicaria hydropiper j ,_@  (L.) SPACH h    14167 + S  Ontario ?%^  middlesex  B       Xxav hydropiper persicaia ;-h-  Michael J. Oldham, Dve McLeod & H. Schraeder B   k2$  contact u.m herbarium POLYGONACEAcE /?i       
{"catalogNumber": "", "order": "", "family": "Polygonaceae", "scientificName": "Persicaria hydropiper", "scientificNameAuthorship": "(L.) Spach", "genus": "Persicaria", "subgenus": "", "specificEpithet": "hydropiper", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Michael J. Oldham, Dave McLeod & H. Schraeder", "recordNumber": "14167", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Ontario", "county": "Middlesex", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}