TASK DEFINITION: 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.
PROBLEM: We call this lifelong interactive learning and inference (LiLi). Lifelong learning is reflected by the facts that the newly acquired facts are retained in the KB and used in inference for future queries, and that the accumulated knowledge in addition to the updated KB including past inference performances are leveraged to guide future interaction and learning.

SOLUTION: In what way does LiLi imitate how humans acquire knowledge and perform inference during an interactive conversation?

PROBLEM: Hausa language is the second most spoken indigenous language in Africa with over 40 million native speakers BIBREF20, and one of the three major languages in Nigeria, along with Igbo and Yoruba. The language is native to the Northern part of Nigeria and the southern part of Niger, and it is widely spoken in West and Central Africa as a trade language in eight other countries: Benin, Ghana, Cameroon, Togo, Cote d'Ivoire, Chad, Burkina Faso, and Sudan. Yoruba language is the third most spoken indigenous language in Africa after Swahilli and Hausa with over 35 million native speakers BIBREF20. The language is native to the South-western part of Nigeria and the Southern part of Benin, and it is also spoken in other countries like Republic of Togo, Ghana, Cote d'Ivoire, Sierra Leone, Cuba and Brazil.

SOLUTION: In which countries are Hausa and Yor\'ub'a spoken?

PROBLEM: KneserNey smoothing In particular, we compare KneserNey smoothing, widely accepted as the state of the art prior to NLMs, to the best NLMs today.

SOLUTION:
what classic language models are mentioned in the paper?