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: Davids team consisting of david o'doherty and katherine parkinson appeared the the episode which was first  broadcasted on 23 september 2011
Example Output: [['5x03', 'FIRST_BROADCAST', '23 September 2011'], ['5x03', 'DAVIDS_TEAM', "david o'doherty and katherine parkinson"]]

Example Input: The Eagle has an average customer rating and French food.
Example Output: [['The Eagle', 'food', 'French'], ['The Eagle', 'customer rating', 'average']]

Example Input: John W.Lerew challenged the Democrat Ed Perlmutter who seeked re-election in 2008.
Example Output:
[['7', 'REPUBLICAN', 'John W. Lerew'], ['7', 'DEMOCRATIC', 'Ed Perlmutter'], ['7', '2008_STATUS', 'Re-election']]