Anchor: You'll see the hot furnaces where the glass mixture (the batch) is melted and blown, and you'll watch the cutting that is done by hand and eye as well as the polishing or engraving.
Entailed: The glass mixture is melted in the hot furnaces.  
Contradiction: The glass is melted in a frying pain on medium heat.  
Contradiction: An inside look into work with glass isn't available for you here.
Contradiction: 6 black men stand around a table talking.
Contradiction: A woman gazes at the ocean.
Contradiction: Kells' voice could not be heard.