Additionally, pipe is used for many purposes that do not involve conveying fluid. Each is a means of conveying lineage. High-density solids pumps are suitable for reducing odors by conveying sludge through hermetic closed pipework. His plays are richly symbolic and serve as a means of conveying his philosophy. He was enormously good at conveying complicated emotions without a word. Framing is an integral part of conveying and processing data on a daily basis. Berlioz was also capable of conveying great delicacy in his instrumental writing. Food processing activities such as plant cleaning, material conveying, bottling, and product washing create wastewater. Town criers were a common means of conveying information to citydwellers. Adele's vocals on "25" were described as being capable of conveying emotion. Monochromacy is the condition of possessing only a single channel for conveying information about color. Allegory is a figurative mode of representation conveying meaning other than the literal. Echoic allusion is the main component involved in conveying verbally ironic meaning. He was charged with unlawfully conveying fuel and openly carrying a firearm. Another method of conveying an analogue signal is to use modulation.