Reverse Alphabetic Strings

You are given a list represented as a JSON array read from standard input. Your task is to process the list according to the following rules:

• If the list is empty, print The list is empty.
• If any item in the list is not of type string, print The list contains non-string items.
• If any string contains non‐alphabetic characters (i.e. it does not match the regular expression \( ^[a-zA-Z]+$ \)), then print an error message in the following format:
  There {is/are} N invalid {entry/entries}: [list]
  Use isalpha() (or its equivalent) to check whether a string is alphabetic. For pluralization, use "are" and "entries" when applicable.
• If all strings are valid, output the reversed list in JSON array format.

Note: The checking of alphabetic characters is equivalent to testing if a string \(s\) satisfies \(s.isalpha()\). Ensure that your output exactly matches the described messages.

inputFormat

The input consists of a single line containing a JSON array. The array may contain elements that are strings, numbers, booleans, etc. For example:

["apple", "banana", "cherry", "date"]

All input should be read from STDIN.

outputFormat

If the input list is valid (non-empty, all items are strings, and all strings contain only alphabetic characters), output the reversed list in JSON array format.

Otherwise, output one of the following error messages:

• The list is empty.
• The list contains non-string items.
• There {is/are} N invalid {entry/entries}: [list]

All output should be written to STDOUT.

## sample

["apple", "banana", "cherry", "date"]

["date", "cherry", "banana", "apple"]