Sentence:  Then one day in May 2012, he picked up a free <WSD>sample</WSD> of a Vietnamese-language magazine based in New Jersey. In it, he saw an article about a career Navy officer named Kimberly Mitchell and her search into her past. 
Meaning of the word marked with <WSD> tags:  A part or snippet of something taken or presented for inspection, or shown as evidence of the quality of the whole; a specimen.