Sentence:  More than a beautiful visualization of the illustrious adventures and escapades of the tragi-comic knight-errant and his squire , Sancho Panza , in seventeenth century Spain , this inevitably abbreviated rendering of the classic satire on chivalry is an affectingly warm and human <WSD>exposition</WSD> of character . 
Meaning of the word marked with <WSD> tags:  a systematic interpretation or explanation (usually written) of a specific topic