This task is about using the specified sentence and converting the sentence to Resource Description Framework (RDF) triplets of the form (subject, predicate object). The RDF triplets generated must be such that the triplets accurately capture the structure and semantics of the input sentence. The input is a sentence and the output is a list of triplets of the form [subject, predicate, object] that capture the relationships present in the sentence. When a sentence has more than 1 RDF triplet possible, the output must contain all of them.

Example Input: With a runway length of 4000.0 metres, Athens International Airport is located in Spata and serves the city of Athens.
Example Output: [['Athens International Airport', 'CITY_SERVED', 'Athens'], ['Athens International Airport', 'RUNWAY_LENGTH', '4000.0'], ['Athens International Airport', 'LOCATION', 'Spata']]

Example Input: Lake Placid, New York is part of New York.
Example Output: [['Lake Placid, New York', 'IS_PART_OF', 'New York']]

Example Input: The runway length at Adolfo Suarez Madrid-Barajas airport located in Madrid, part of the community of Madrid in Spain, is 3500.0 . The airport is 610 metres above sea level.
Example Output:
[['Madrid', 'IS_PART_OF', 'Community of Madrid'], ['Adolfo Suárez Madrid–Barajas Airport', 'ELEVATION', '610.0'], ['Adolfo Suárez Madrid–Barajas Airport', 'RUNWAY_LENGTH', '3500.0'], ['Adolfo Suárez Madrid–Barajas Airport', 'LOCATION', 'Madrid'], ['Madrid', 'COUNTRY', 'Spain']]