What does the number of the first word in the patent mean?

The number of words of each undivided main claim in the patent document. When writing the patent application documents, each undivided principal claim shall express the features and advantages of the invention or utility model in as much detail as possible. These claims isomorphically constitute the scope of the patent right, and the number of words in the first claim is an important indicator to measure the depth and breadth of the patent.