sentence: Toys are for children, adults, and animals.
sentences_before: Marbles are a type of toy. A 'toy' is something to play with.
sentences_after: Before 1970, most toys were made of metal and wood. Now, they are mostly made of plastic. Sometimes they are made of electronic material. Some people also consider video games toys. Toys include balls, plastic cars, and dolls.
concept_name: toy
headings: Toy