Definition: In this task, you are given a sentence and a question, you would be asked to create the answer which is contained in the sentence provided.
Input: Sentence: Neon, krypton and argon are examples of halogen gases kind of gases, which produce light by electroluminescence. Question: Neon, krypton and argon are examples of what kind of gases, which produce light by electroluminescence?
Output:
halogen gases