In this task, you will be presented with a context from an academic paper and a question separated with a
. You have to answer the question based on the context.

Paraphrases can be obtained by translating an English string into a foreign language and then back-translating it into English.
Question: It looks like learning to paraphrase questions, a neural scoring model and a answer selection model cannot be trained end-to-end. How are they trained?
using multiple pivot sentences