messages: “Ils apportent à l'encre sa couleur, son opacité, ou des propriétés optiques particulières, telles que la fluorescence (cf. brevets ou demandes de brevets US-A-4 153 593, US-A-4 756 758, US-A-4 880 465, EP-A-0 289 141, US-A-5 395 432, GB-A-2 298 713).”
messages: assistant
messages: Could you rephrase this text please?
messages: user
messages: “They give the ink its color, its opacity, or specific optical properties, such as fluorescence (cf. patents or patent applications U.S. Pat. No. 4,153,593, U.S. Pat. No. 4,756,758, U.S. Pat. No. 4,880,465, EP-A-0 289 141, U.S. Pat. No. 5,395,432, GB-A-2 298 713).”
messages: assistant