A good way to add on would be 'Also, it's not a painting as many believe' not 'It is not a painting'.
I'd venture to say a vast majority of level headed people would have taken the same meaning as Frank did by how you worded it.
A good way to add on would be 'Also, it's not a painting as many believe' not 'It is not a painting'.
I'd venture to say a vast majority of level headed people would have taken the same meaning as Frank did by how you worded it.