Sentence:  The crowd staged its own mad scene in salvos of cheers and applause and finally a <WSD>standing</WSD> ovation as Miss Sutherland took curtain call after curtain call following a fantastic `` Mad Scene '' created on her own and with the help of the composer and the other performers . 
Meaning of the word marked with <WSD> tags:  enthusiastic recognition (especially one accompanied by loud applause)