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": ""}
 i PRUNUS SEROTINA    .N 1970-06-15 Horner Woods, next to path about 15 m east of main entrance. (1 97    serotina 1         P|zxy sylvia m. taylor          : [APPROX. COORDINATES ARE FOR 15 M E OF THE MAIN ENTRANCE]   
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Prunus serotina", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "serotina", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Sylvia M. Taylor", "recordNumber": "", "verbatimEventDate": "1970-06-15", "habitat": "", "occurrenceRemarks": "[Approx. coordinates are for 15 m E of the main entrance]", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "Horner Woods, next to path about 15 m east of main entrance.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}