Teacher:You are given two sentences(Sentence1 and Sentence2). Answer "Yes" if these sentences are a paraphrase of one another, otherwise answer "No".
Teacher: Now, understand the problem? Solve this instance: Sentence1: An episode is declared when the ozone reaches .20 parts per million parts of air for one hour ., Sentence2: A Stage 1 episode is declared when ozone levels reach 0.20 parts per million .
Student:
Yes