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": ""}
    iivb gemellus     Oe-6 Echinopepon gemellus  uR> Jerzy Rzedowski  Cucurbitales MH    (DC.) A.K.Monro & Stafford Rx;   Y*FNe Contact UM Herbarium   JERZY RZEDOWSKI <s     P39G Mexico   =iRS 1974-09-29 1270512 _]    mexico eiNc 
{"catalogNumber": "1270512", "order": "Cucurbitales", "family": "", "scientificName": "Echinopepon gemellus", "scientificNameAuthorship": "(DC.) A.K.Monro & Stafford", "genus": "", "subgenus": "", "specificEpithet": "gemellus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Jerzy Rzedowski", "recordedBy": "Jerzy Rzedowski", "recordNumber": "", "verbatimEventDate": "1974-09-29", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Mexico", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}