_SENTENCES — Returns the total number of sentences in the last file processed by WORDS.

Syntax:
%_SENTENCES

A ‘sentence’ is a word or series of words ending with a period, exclamation mark, or question mark. Divide %_SENTENCEWORDS by %_SENTENCES to get the average sentence length.

If the WORDS command has not been called, or if there was any error reading the last file, this variable returns the value N/A.