Task: Question Answering
Input (English): Context: Yosemite Sam is on the hunt for a rabbit, and smells Bugs cooking carrots over a rotisserie. When an audience member attempts to leave, Yosemite Sam forces him back into his seat at gunpoint and breaks the fourth wall, threatening to kill anyone who tries to leave the theatre, fearing they could spoil his plan.Sam corners Bugs, and tells him he will be killed at the count of 10. During the countdown, Bugs takes out a piece of bubble gum, chews it, and jams Sam's rifle with it. When Sam fires, he is enveloped in a bubble gum bubble. The bubble is virtually weightless and highly durable; Bugs blows it away, and it falls over a cliff. Sam frantically blows upward, which causes the bubble to stop falling and drift up again. However, Bugs is waiting at the top of the cliff, and he uses a pin to burst the bubble. Sam is enveloped in the sticky remains of the bubble, and sticks to the ground when he falls, bouncing upward repeatedly.Sam chases after Bugs again, managing to get the bubble gum off his body. He forces Bugs out of his hole with a shovel, and marches him to his house at gunpoint.Sam prepares to cook Bugs in a wood stove. Bugs throws Sam's hat into the fire, but when Sam goes to retrieve it, he retrieves a piece of burning firewood by mistake. He quickly gets his hat again, and orders Bugs into the oven (again at gunpoint). While Sam sets the table, he is surprised to find Bugs calmly exiting the oven, retrieving a pitcher of water and a fan, and stepping inside again. Sam is not pleased, but Bugs opens the door again and asks for a bottle opener, which Sam gives to him. The sounds of a party can be heard inside the oven.Bugs exits the oven again to get some ice and chairs, then returns once more and empties two full ashtrays into Sam's hat. When Bugs emerges for the fifth time, he is covered with lipstick marks, and tells Sam plenty of girls are waiting for him inside. Sam quickly puts on a bowtie, and steps into the oven, prompting Bugs to slam the door. Bugs "warms the party up" by throwing some more firewood into the stove, but then decides he's gone too far with this prank.He opens the oven door to tell Sam about the prank, but is flabbergasted to find an actual party taking place inside the oven. He excitedly dives into the oven to join the party, emerging one more time to quip to the audience, "I don't ask questions, I just have fun!" Iris out. 
 Question: What is the bubble that surrounds Sam is made of?
Output (English): bubble gum