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.

Jānis Daliņš belongs to Latvia.
[['Jānis Daliņš', 'NATIONALITY', 'Latvia']]

Ethylcellulose can be derived using chloroethane, and it is water insoluble.
[['Ethylcellulose', 'REAGENT_EXAMPL7', 'Chloroethane'], ['Ethylcellulose', 'WATER_SOLUBILITY', 'Water insoluble']]

There is a coffee shop that serves Indian food located in riverside. It is called Fitzbillies and its prices range more than £30. It is child friendly and has a high customer rating.

[['Fitzbillies', 'eatType', 'coffee shop'], ['Fitzbillies', 'food', 'Indian'], ['Fitzbillies', 'priceRange', 'more than £30'], ['Fitzbillies', 'customer rating', 'high'], ['Fitzbillies', 'area', 'riverside'], ['Fitzbillies', 'familyFriendly', 'yes']]