Part 4A (第4問A)

In some countries, silver gifts are given for 25th wedding anniversaries and gold gifts for 50th anniversaries. But in the United Kingdom, there are also some traditional gifts given to celebrate other anniversaries. Perhaps people are not so familiar with them. For example, for 3rd anniversaries, leather gifts are usually given. Three years later, gifts containing sugar are appropriate. Six years after that, something made of silk is the expected gift. Some might be surprised to find out that diamonds are given not only for engagements, but also for 60th anniversaries.