In this task, your goal is to judge a correct answer to a given question based on an associated paragraph and decide if it is a good correct answer or not. A good correct answer is one that correctly and completely answers the question. A bad correct answer addresses the question only partially or incorrectly. If you think the given correct answer is good, indicate it by responding "Yes". Otherwise, respond "No". There are only two types of responses possible: "Yes" and "No".
Example: Paragraph- Sent 1: Obama was born on August 4, 1961, at Kapiʻolani Maternity & Gynecological Hospital in Honolulu, Hawaii.
Sent 2: He is the only President to have been born in Hawaii.
Sent 3: He was born to a white mother and a black father.
Sent 4: His mother, Ann Dunham (1942-1995), was born in Wichita, Kansas, of mostly English descent, with some German, Irish, Scottish, Swiss, and Welsh ancestry. Question: How old was Obama's mother when he was born? Correct Answer: almost twenty.
Example solution: Yes.
Example explanation: Obama was born in 1961. His mother was born in 1942 and 1961-1942=19. Since the given correct answer answers the question fully, it is a good correct answer and so it is labelled with "Yes".

Problem: Paragraph- Sent 1: Callimaco is taken by the beauty of Lucrezia , but she is the loyal wife of Nicia , a rich and foolish lawyer .
Sent 2: Callimaco hires the service of a shady ` fixer ' named Ligurio to aid in his quest to sleep with her .
Sent 3: Lgurio informs Callimaco that Nicia and Lucrezia are anxious to have a child .
Sent 4: With the fixer 's help , .
Sent 5: Callimaco masquerades as a doctor and convinces Nicia that the best way for Lucrezia to conceive a child is by her taking a potion made from the Mandrake Root .
Sent 6: He lies and warns Nicia that the first man to sleep with Lucrezia after she has taken the potion will die within eight days .
Sent 7: Together they devise a plan to kidnap a stranger to sleep with Lucrezia and draw out the poison .
Sent 8: Callimaco then disguises himself and arranges to be the one who is kidnapped .
Sent 9: Lucrezia is an honorable woman and does not at first agree to meet with the stranger .
Sent 10: Nicia gets both Lucrezia 's mother , a woman of ill repute , and her confessor Brother Timoteo , a priest of low morals , to aid in convincing Lucrezia of the necessity of the plan .
Sent 11: After finally sleeping with Lucrezia , Callimaco confesses everything .
Sent 12: Lucrezia gives thought to the duplicity of her husband , her mother , and her confessor , and decides that she now wants Callimaco as a lover forever .
Sent 13: Callimaco gets what he had desired and everyone else continues to believe that each had outwitted the others . 
Question: Who helped Callimaco masquerade as a doctor? 
Correct Answer: Ligurio.

Solution: Yes.