Problem: "Chasing Colors" is a song recorded by electronic DJs Marshmello and Ookay featuring the vocals of American singer Noah Cyrus. It was written by Marshmello, Ookay, Skyler Stonestreet and Chase Duddy and released on 24 February 2017 via Marshmello's label Joytime Collective.

Based on the paragraph above can we conclude that ""Chasing Colors" was never played on mainstream radio."?

A: It's impossible to say

Problem: The Program in Creative Writing, more commonly known as the Iowa Writers' Workshop, at the University of Iowa in Iowa City, Iowa, is a much-celebrated graduate-level creative writing program in the United States. Writer Lan Samantha Chang is its director. Graduates earn a Master of Fine Arts (MFA) degree in Creative Writing.

Based on the paragraph above can we conclude that "The Program in creative writing Is directed by Chef Lan Samantha Shang"?

A: No

Problem: The Lei Aurea (] ; English: Golden Law ), adopted on May 13, 1888, was the law that abolished slavery in Brazil. It was signed by Isabel, Princess Imperial of Brazil (18461921), an opponent of slavery, who acted as regent to Emperor Dom Pedro II, who was in Europe.

Based on the paragraph above can we conclude that "Isabel, Princess Imperial of Brazil did not like slavery after watching it in America"?

A:
It's impossible to say