Sentence:  “My husband, alas! whom I now (<WSD>sob</WSD>, <WSD>sob</WSD>) mourn,/ A short time since (<WSD>sob</WSD>) to this grave (<WSD>sob</WSD>) was borne;/ And (<WSD>sob</WSD>) he lies buried in this (<WSD>sob</WSD>, <WSD>sob</WSD>) grave.” 
Meaning of the word marked with <WSD> tags:  sound of sob