In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".
Example: Timothy likes to play sports. He spends his time after school playing basketball and baseball. Sometimes Timothy pretends he is a famous baseball pitcher for his favorite team with his friends. He plays with his friends Mandy and Andrew. Timothy also plays pretend when he is alone. He has an imaginary friend named Sean. Sean is an elephant who watches television with Timothy. Mandy likes playing baseball but she also likes to paint. Mandy's favorite class at school is art. She likes making pictures of flowers. Her teacher says she is a good artist. She painted a picture of a tree for her teacher. There were red and yellow leaves on it. It had apples on it. When Andrew goes home after baseball, he likes to eat a snack. He eats carrots and bananas. If he is a good boy his mom, Mrs. Smith, sometimes gives him milk and cookies. Afterwards, Andrew finishes his homework. <sep>Who does Timothy play with?<sep>Basketball and baseball
Example solution: No
Example explanation: Based on the passage Timothy plays with his friends Mandy and Andrew. So, the given answer is incorrect and the output should be "No".

Problem: An archaeological party explore some caverns underground .  Dr. Campbell and Dr. Hughes are the two leaders of the archaeological expedition , and get separated .  While Dr. Hughes finds an alien corpse with a fossilized diamond , Dr. Campbell finds hieroglyphics at the cost of the party except for Hughes and himself .  Two years later , Campbell and his assistant Holly are digging up the bones of Yonggary , a gargantuan dinosaur 50 times the size of a tyrannosaurus rex .  Out of nowhere , people slowly are being killed around the site .  While Holly is working Dr. Hughes , who has been legally dead for 2 years , goes to Holly and tells her to stop the dig .  Dr. Campbell comes into the tent and sends Dr. Hughes off .  Holly quits the expedition when another `` Accident '' occurs .  In the town bar , Dr. Hughes finds Holly and takes her back to her Hotel room to tell her why he thinks the bones of the Dinosaur , Which he calls Yonggary , are going to bring the end of the world .  After explaining , Holly and Hughes go to the site to stop Campbell but it is too late and Aliens resurrect Yonggary .  After Yonggary's first appearance , the Army comes in and takes Holly and Campbell to an army base when Yonggary is dispatched by the aliens again .  The army sends choppers after Yonggary , but he destroys them .  Yonggary is then sent to the city and does some damage , where some jets attack him .  Then Yonggary is transported to a power plant where he is attacked by rocket pack soldiers .  During the fight , Hughes and Holly find out that the diamond on Yonggary's forehead is the device giving the aliens control of Yonggary . <sep>What did the army send to attack Yonggary prior to the jets?<sep>Rocket pack soldiers

Solution: No