Passage Summary: Zack's has poetry most Wednesdays, and on any day they have poetry, the coffee is half-price all day long.

Reasoning: The coffeehouse hosts free poetry on most Wednesdays, and whenever there is a poetry reading, they offer discounted coffee for the entire day.

Analysis: We are looking for a solid inference based on these two rules. Since poetry happens on 'almost every Wednesday,' we can conclude that on 'almost every Wednesday,' coffee is half-price. We can also infer that if the coffee is full price, there definitely isn't a poetry reading scheduled that day. Be careful not to assume that half-price coffee only happens on poetry days; the stimulus says poetry triggers the discount, but other things might trigger it too.