Answer with Explanation:
1. Do you consider them heroes?
Yes, I consider Anne Frank and Vincent van Gogh as heroes because they were able to influence the society in a positive way. Anne Frank's "The Diary of a Young Girl" became useful in telling the world what was actually happening during the German occupation in Netherlands. On the other hand, Vincent van Gogh's art works later on influenced the German Expressionists and the Fauves. It allowed the modern art to know what elements were used by a tortured artist like Gogh who happened to face many troubles and depression.
2. In the context of the poem, what is a hero?
You haven't attached the "poem."
A "hero" is somebody who creates an important change in the society. It doesn't only mean that he saves people physically, but it can also mean he saves them emotionally, mentally, and the like. For this, they are admired and are always working towards a greater cause.