state memorial service of Nelson Mandela
... that the sign language interpreter for the state memorial service of Nelson Mandela made meaningless hand gestures that did not reflect established signs?
... that the sign language interpreter for the <b id="mwCX8"><a href="./Death_and_state_funeral_of_Nelson_Mandela" id="mwCYA" rel="mw:WikiLink" title="Death and state funeral of Nelson Mandela">state memorial service of Nelson Mandela</a></b> made meaningless hand gestures that did not reflect established signs?