evolve – v. to change or develop slowly often into a better or more complex state

data – n. facts or information used usually to estimate or plan something

souvenir – n. something that is kept to help one remember a place you have visited

gross domestic product – n. the total value of goods produced and services provided in a country during one year

cheap – adj. something that does not cost a lot of money

slops – n. food that is fed to pigs and other animals

monument – n. a building or other structure set up in honor of a famous person or event

decoration – n. the activity of making something look more appealing