TASK DEFINITION: In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
PROBLEM: passage: If there is more than one light source, there will be several shadows, with the overlapping parts darker, and various combinations of brightnesses or even colors. The more diffuse the lighting is, the softer and more indistinct the shadow outlines become, until they disappear. The lighting of an overcast sky produces few visible shadows.
 question: can an object have more than one shadow?

SOLUTION: Yes

PROBLEM: passage: Davenport had visited White Castle restaurants, taking notes of successful features, before setting forth on his own venture. Davenport and Sherrill set up the first Krystal at the corner of 7th and Cherry Streets in Chattanooga. The first Krystal was a modular building constructed in Chicago and shipped to Chattanooga for final installation. The oldest Krystal still in operation is located on Cherokee Boulevard in Chattanooga's Northshore District. Krystal is the seventh or eighth-oldest hamburger chain in the United States (the oldest being White Castle) and the oldest in the South.
 question: is white castle and krystal the same company?

SOLUTION: No

PROBLEM: passage: A signature (/ˈsɪɡnətʃər/; from Latin: signare, ``to sign'') is a handwritten (and often stylized) depiction of someone's name, nickname, or even a simple ``X'' or other mark that a person writes on documents as a proof of identity and intent. The writer of a signature is a signatory or signer. Similar to a handwritten signature, a signature work describes the work as readily identifying its creator. A signature may be confused with an autograph, which is chiefly an artistic signature. This can lead to confusion when people have both an autograph and signature and as such some people in the public eye keep their signatures private whilst fully publishing their autograph.
 question: can an x be used as a signature?

SOLUTION:
Yes