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.

Arros negre is from the region of Catalonia in Spain. The main ingredients are white rice, cuttlefish or squid, cephalopod ink, cubanelle peppers.
[['Arròs negre', 'COUNTRY', 'Spain'], ['Arròs negre', 'MAIN_INGREDIENTS', '"White rice, cuttlefish or squid, cephalopod ink, cubanelle peppers"'], ['Arròs negre', 'REGION', 'Catalonia'], ['Arròs negre', 'INGREDIENT', 'Squid']]

Blue Spice is an expensive fast food establishment on the riverside.
[['Blue Spice', 'food', 'Fast food'], ['Blue Spice', 'priceRange', 'high'], ['Blue Spice', 'area', 'riverside']]

Buzz Aldrin is a national of the United States led by Joe Biden. He was a crew member of Apollo 11. On Apollo 11 the backup pilot was William Anders.

[['Buzz Aldrin', 'WAS_A_CREW_MEMBER_OF', 'Apollo 11'], ['Buzz Aldrin', 'NATIONALITY', 'United States'], ['United States', 'LEADER_NAME', 'Joe Biden'], ['Apollo 11', 'BACKUP_PILOT', 'William Anders']]