strng is a data string (enclosed in quotes) or a variable with a value that is a string. Mandatory.
delimiter is a set of characters, enclosed in quotes, each of which is used as a delimiter. Words are the strings located from the start of strng to the first delimiter, or between two delimiters, or from the last delimiter to the end of strng. Mandatory.
wordNum is a number that represents the position of a word in strng. For example, 3 represents the third word in the string. Mandatory.
