sentences:  One of the most characteristic and popular acts of these festivities is the so-called "tronada", which is a series of 29 little mortars "masclets" with bangers interleaved, arranged linearly around the "Mercadal" square (where the city hall is located), united by a hand craft gunpowder line.This line ends in a square shape in front of the city hall, with more bangers and 9 more "masclets".Also, on September 25, the "Mare de Déu de la Misericòrdia" is held.