Q: In this task, you will be presented with a context from an academic paper and you have to write an answerable question based on the context. Your questions can be extractive, abstractive, or yes-no questions.
The following handcrafted features were used for the model:

Bias feature

Token feature

Uppercase feature (y/n)

Titlecase feature (y/n)

Character trigram feature

Quotation feature (y/n)

Word suffix feature (last three characters)

POS tag (provided by spaCy utilities)

Word shape (provided by spaCy utilities)

Word embedding (see Table TABREF26)
A:
What are the handcrafted features used?