particles { particle: particle_type=H1, element_name=H, sigma=0, epsilon=0, sigma14=0, epsilon14=0, mass=0, free=3, charge=0.345141182; particle: particle_type=O1, element_name=O, sigma=0, epsilon=0, sigma14=0, epsilon14=0, mass=0, free=3, charge=-0.6905946281; }