Read the following paragraph and determine if the hypothesis is true:

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.

Hypothesis: A conjectural portrait was made for George Washington.
It's impossible to say