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": ""}
MICHIGAN G~tj(   TD depth of water: 6-12 inches bottom: sand and gravel [stipules scarcely fibrous, without basal glands, connate; sterile, but with aspect of P. foliosus] S       macellus 8      p; POTAMOGETON   potamogtonaceae Z      M+g: barry   ;bk L united states  42.64627 NX,=5     
{"catalogNumber": "", "order": "", "family": "Potamogetonaceae", "scientificName": "", "scientificNameAuthorship": "", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "macellus", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "Depth of Water: 6-12 inches Bottom: sand and gravel", "occurrenceRemarks": "[stipules scarcely fibrous, without basal glands, connate; sterile, but with aspect of P. foliosus]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Barry", "municipality": "", "locality": "", "decimalLatitude": "42.64627", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}