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.

Input: Consider Input: Charles w. whalen, jr. (r) unopposed were the candidates in the districts that was first elected in 1966.

Output: [['Ohio 3', 'INCUMBENT', 'Charles W. Whalen, Jr.'], ['Charles W. Whalen, Jr.', 'FIRST_ELECTED', '1966'], ['Ohio 3', 'CANDIDATES', 'Charles W. Whalen, Jr. (R) Unopposed']]


Input: Consider Input: Strada It is not for the whole family, rated 1 star, their prices are cheap, It is next to Rainbow Vegetarian Café

Output: [['Strada', 'priceRange', 'less than £20'], ['Strada', 'customer rating', 'low'], ['Strada', 'near', 'Rainbow Vegetarian Café']]


Input: Consider Input: Yelena competed in Manila in the Asian Championship.


Output: [['[TABLECONTEXT]', '[TITLE]', 'Yelena Koshcheyeva'], ['Asian Championships', 'VENUE', 'Manila, Philippines'], ['2003', 'COMPETITION', 'Asian Championships'], ['[TABLECONTEXT]', 'YEAR', '2003']]