First, your program must ensure that the word must consist of only English letters., the word SWE3T is invalid because it contains a number.

First, your program must ensure that the word must consist of only English letters. E.g., the word SWE3T is invalid because it contains a number. Similarly, Hello World is also invalid because it contains a whitespace. If the word does not consist of only the English letters, your program must print a message Only use English letters..

How can i use only logical statements to run this program ?