user: Given this paragraph, what key crops were not available in Europe before the colonization of the New World?

assistant: <think>
Food historian Lois Ellen Frank calls potatoes, tomatoes, corn, beans, squash, chili, cacao, and vanilla the "magic eight" ingredients that were found and used only in the Americas before 1492 and were taken via the Columbian Exchange back to the Old World, dramatically transforming the cuisine there. According to Frank,
If we deconstruct that these foods were inherently native, then that means that the Italians didn't have the tomato, the Irish didn't have the potato, half the British National Dish—Fish and Chips—didn't exist. The Russians didn't have the potato, nor did they have vodka from the potato. There were no chiles in any Asian cuisine anywhere in the world, nor were there any chiles in any East Indian cuisine dishes, including curries. And the French had no confection using either vanilla or chocolate. So the Old World was a completely different place.</think>
Potatoes, tomatoes, corn, beans, squash, chili, cacao, and vanilla were not available in the Old World prior to the European discovery of the Americas

user: What is an RSU?

assistant: A restricted stock unit or RSU is the right to receive a share of common stock (or an equivalent value in cash) upon certain vesting conditions.  

Following satisfaction of certain vesting conditions, the company would deliver to the holder of the RSUs whole shares of common stock, cash or a combination of common stock and cash.  RSUs generally vest when two conditions are met - a service vest period has been satisfied, and an exit liquidity event has occurred prior to the expiration date of the RSUs. 
Some companies also require the individuals to be employed at or providing services to the company upon satisfaction of the exit liquidity event.  

At this time, the RSUs will be settled and taxes will be owed on the full value of the settled shares (or cash) at regular compensation tax rates (based on the fair market value of the common stock at the time of settlement).  

Unlike options, RSUs have value even if the value of the company declines (since there is no exercise price to pay), but still provide upside based on the company’s results over time.  Because there is no exercise payment required, a grant of RSUs usually consists of a smaller number of shares than a grant of options.

user: List down important points about prisoners and events from the given passage

assistant: <think>
The first recorded interment occurred on 13 December 1922. Other burials at the cemetery include forty-four German and seven Italian prisoners of war who died at nearby detention camps during World War II, as well as four allied Chinese pilots. As of July 2022, there are three Medal of Honor recipients and twenty general officers interred at the cemetery</think>
1. On December 13, 1922, the first known interment took place.
2. At the nearby detention centre during World War 2, 44 German and 7 Italian prisoners died and were buried there.
3. Four Chinese pilots are also interred at the cemetery beside these POWs.
4. Twenty general officers and three Medal of Honor recipients are buried at the cemetery as of July 22.