What is the fine-grained topic of the following text: When Jon Bon Jovi (a loyal Project supporter) described Mary to the press as a nun 'who swears and spits,' the good sister merely replied, 'I do not spit' - and then returned to her work of tirelessly saving her city, one desperate citizen at a time." Only return the topic.
Mary's work in helping her city and Jon Bon Jovi's description of her.