 
 <prompt> text: ```Baby sign language na one movement wey dey grow. Campbell dey point to one colorful flower, she carry her baby hand wey soft, and she dey move am rapidly from one side of hin nose to the other as she dey sniff. "Flower!" she talk loudly. Gregory dey smile and dey look carefully. E fit take one year before Gregory, wey dey 4 months old, fit talk, but for now hin mama dey hope to communicate with her baby through sign language.

Like other people around the world, Campbell dey part of one movement wey dey grow of parents wey dey teach hearing babies simple signs to communicate before dem fit talk. The baby sign language don dey popular for recent years. The movie, "Meet the Fockers", where the main character dey teach hin young grandson to sign, don make am well developed.

Babies generally dey start to talk between 12 and 15 months, but babies fit use sign language to communicate before dem learn how to talk.

"We sabi say dem dey learn language faster pass how dem fit show you with their speech production because that system dey take long time to develop." McRoberts talk, wey be director of developmental research for Haskins Laboratories.

"Dem dey understand words before dem fit talk am. From around 16 to 18 months, dem fit talk like 50 words but understand like 200. Dem dey understand short sentences well." McRoberts talk.

Studies don show say deaf children dey learn to use sign language earlier pass hearing children wey dey learn to talk meaningfully. As to whether hearing babies fit communicate earlier with sign language, McRoberts talk say, "I think say e still dey unknown. E fit no dey. I dey very interested for that question."

Answer this series of questions:

1. When babies dey start to talk?
2. Dem dey understand words before dem talk am?
3. By when dem fit talk like 50?
4. And understand how many?
5. Wetin the article dey about?
6. Wetin be the mama name?
7. How old her baby be?
8. Who dey do the research?
9. Where e dey work?
10. As?
11. Wetin make the language popular?
12. How?
13. Wetin be the baby name for here?
14. Wetin the mama dey show am?
15. Wetin she dey hope to achieve?
16. Dem dey learn faster?
17. Wetin studies show about babies wey no fit hear?
18. Mama dey talk while she dey teach signs?
19. Wetin she talk?
20. How long before Gregory fit talk?``` <response>: ```1. between 12 and 15 months
2. yes
3. around 16 to 18 months
4. 200
5. Baby sign language
6. Campbell
7. 4 months
8. McRoberts
9. Haskins Laboratories
10. director of developmental research
11. Meet the Fockers
12. the main character teaches his young grandson to sign
13. Gregory
14. a colorful flower
15. to communicate with her baby through sign language
16. yes
17. deaf children learn to use sign language earlier than hearing children learn to speak meaningfully
18. yes
19. "Flower!"
20. E fit be one year``` 