We all know this well in dealing with ice cubes - you must remove heat from water to make ice and, conversely, you must add heat to ice to melt the ice.
(you; must remove conversely; heat; from water) Context(you must remove conversely,List([50, 109))):(We; know; this well) Context(you must remove conversely,List([50, 109))):(you; must remove conversely to make; ice) (you; must add; heat; to ice to melt the ice) Context(you must add,List([111, 123))):(you; must add heat to ice; to melt the ice)
you must remove conversely,List([50, 109)) you must remove conversely,List([50, 109)) you must add,List([111, 123))
you We you you you
must remove conversely know must remove conversely to make must add must add heat to ice
heat from water
this well
ice
heat to ice to melt the ice
to melt the ice