Input:

A conjectural portrait is a portrait made of a historical figure for whom no authentic contemporary portrait is available. The depiction, then, may be variously informed by written accounts of physical appearance, conjecture based on the subject's culture and background, and/or the artist's conception of the subject's inner essence.

Sentence: A conjectural portrait was made for George Washington.

Output: It's impossible to say

Input:

December is the sixteenth album by the rock group, The Moody Blues. The Christmas themed album released in 2003 is their most current album of new material and their first album since "The Magnificent Moodies" to feature covers as well as original material. It is also their first album following Ray Thomas' retirement from the band, and is their final studio release.

Sentence: The Moody Blues had 16 albums

Output: Yes

Input:

Eddie Vedder (born Edward Louis Severson; December 23, 1964) is an American musician, singer and songwriter best known as a member of the rock band Pearl Jam, with whom he performs lead vocals and is one of three guitarists. He is known for his powerful baritone vocals. He also appeared as a guest vocalist in Temple of the Dog, the one-off tribute band dedicated to the late singer Andrew Wood.

Sentence: Andrew Wood died on December 23rd, 1984.

Output: It's impossible to say

Input:

The Combat Box was a tactical formation used by heavy (strategic) bombers of the U.S. Army Air Forces during World War II. The combat box was also referred to as a "staggered formation". Its defensive purpose was in massing the firepower of the bombers' guns, while offensively it concentrated the release of bombs on a target.

Sentence: The Combat Box took months to develop.

Output:
It's impossible to say