Sentence:  In small-town people are very friendly dominant stress will generally be on the complement very friendly ; in the <WSD>double</WSD> sentence the smaller the town , the friendlier the people it will generally be on the subjects the town and the people . 
Meaning of the word marked with <WSD> tags:  having more than one decidedly dissimilar aspects or qualities; public preaching and private influence"- R.W.Emerson