Sentence:  The breathing <WSD>flute's</WSD> soft notes are heard around. 
Meaning of the word marked with <WSD> tags:  A woodwind instrument consisting of a tube with a row of holes that produce sound through vibrations caused by air blown across the edge of the holes, often tuned by plugging one or more holes with a finger; the Western concert flute, a transverse side-blown flute of European origin.