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": ""}
 1960-05-07 Ib     "leaves not glaucous."   y= VACCINIUM   occasional low shrub on dune ridges u@ 5       /v[ ERICACEAE  m!@xw UNITED STATES HOUSE ;U ^.     -i, angustifolium  IOSCO J<DE7   laevifolium ;.X     [<Pf -83.44794 Michigan By<L0   
{"catalogNumber": "", "order": "", "family": "Ericaceae", "scientificName": "", "scientificNameAuthorship": "House", "genus": "Vaccinium", "subgenus": "", "specificEpithet": "angustifolium", "verbatimTaxonRank": "", "infraspecificEpithet": "laevifolium", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1960-05-07", "habitat": "occasional low shrub on dune ridges", "occurrenceRemarks": "\"Leaves not glaucous.\"", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Iosco", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-83.44794", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}