user: What are a couple of ways to increase profitability?

assistant: Since profitability can be computed as revenue less expenses for a period, there are several ways to increase profitability.  To increase revenue, you could sell more units or increase the price.  To lower expenses, you could reduce the cost to produce your good or service or reduce SG&A costs

user: Could you tell me how Cao Cao's fleet got destroyed during the battle of Red Cliffs based on this paragraph?

assistant: Cao Cao's fleet got set on fire by the General Huang Gai. Huang Gai initially informed Cao Cao that he'd betray the Allied Force formed by Liu Bei and Sun Quan. But Huang Gai was actually trying to take this chance to send ships loaded with flammable reeds to Cao Cao's fleet. Cao Cao took the bait and accepted the offer from Huang Gai. Then, when Huang Gai's ships arrived, the Allied Force set Cao Cao's fleet and camps on fire and essentially destroyed Cao Cao's army.

user: Why are people afraid of sharks?

assistant: Many people are afraid of sharks from irrational fear from media, and from losing control. Only about 80 humans are attacked by sharks each year, with a very low death rate. Galeophobia is the term used for being afraid of sharks.