[originaltext] Recently, a couple in New Zealand were forbidden from naming

Recently, a couple in New Zealand were forbidden from naming their baby son 4Real. Even though New Zealand has quite liberal rules about naming children, names beginning with a number are not allowed. They decided to call him Superman instead. In many countries around the world, unusual names for children are becoming more popular, especially since the increasing trend for celebrities to give their children unusual names. Some parents choose names which come from popular culture. For example, there have been six boys named Gandalf after the character in the Lord of the Rings novels and films. Equally, name related to sport are fairly common—since 1984, 36 children have been called Arsenal after the football team. Other parents like to make up names, or combine names to make their own unique version, a method demonstrated by Jordan, the British model, who recently invented the name Tiaamii for her daughter by combining the names Thea and Amy (the two grandmothers). She was quoted as saying that the accent and double letters were added to make the name "more exotic". Other countries have much stricter rules when it comes to naming children.Countries, including Japan, Denmark, Spain, Germany and Argentina, have an approved list of names from which parents must choose.
Questions 19 and 21 are based on the passage you have just heard.
19. Why can’t the couple call their baby son 4Real in New Zealand?
20. What are the reasons for parents to choose baby’s unusual names?
21. Which countries have strict rules about naming-children?