ABSTRACT
https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203641279/2175d6ea-8612-47ea-9bb3-46efa5050494/content/fig2_B.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/>You are sick today. Explain to your friend Keiko that you have a headache, feel a chill, and also have a bad cough. Your friend suggests that you go home, take some medicine, and sleep.
