Assertion: alliance's group | /r/HasProperty | led by camillo piazza
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Source sentences:
text: Between March and April Christian Democratic Refoundation party of Publio Fiori, a group of liberals led by Valerio Zanone, a former leader of the Italian Liberal Party, Democratic senator and leader of Liberal PD, and a group of greens led by Camillo Piazza, a former Green deputy, joined the Alliance.