Lucy (Skillet song) couple struggling with feelings of regret after an abortion. He retold this story and further explained his intent in writing the song in an Air 1 interview posted on Skillet's official website: Skillet - Lucy Story Behind The Song. Lucy (Skillet song) "Lucy" is the fifth single of the 2009 album "Awake" by the Christian rock band Skillet, and is the twelfth and final track on the album. John Cooper initially refrained from discussing the song's full meaning, stating that it has "a gist of regret where you wish you had done things differently" and "even though there's a specific
Envy-free item assignment the agents' utilities are not additive, the MNW solution is not necessarily EF1; but if the agents' utilities are at least submodular, the MNW solution satisfies a weaker property called "Marginal-Envy-Freeness except-1-item" (MEF1). There is an alternative criterion called Envy-freeness-except-cheapest (EFx): For each two agents A and B, if we remove from the bundle of B "any" item, then A does not envy B. EFx is strictly stronger than EF1. As of this writing, it is not known whether EFx allocations always exist. Given an allocation "X", define the envy ratio of "i" in "j" as: so the ratio is