Finding Nemo devises a plan to escape: jam the tank's filter with a pebble so the dentist will have to put the fish in plastic bags to clean the tank, then roll out the window and into the harbor. Nemo attempts to jam the filter but fails, nearly dying in the process. The mask falls into a trench in the deep sea, where, while battling an anglerfish, Dory reads the address as "42 Wallaby Way, Sydney". To her own disbelief, Dory remembers the address despite her short-term memory loss. Dory and Marlin receive directions to Sydney from a school of moonfish. On
Forgetful functor Forgetful functor In mathematics, in the area of category theory, a forgetful functor (also known as a stripping functor) 'forgets' or drops some or all of the input's structure or properties 'before' mapping to the output. For an algebraic structure of a given signature, this may be expressed by curtailing the signature: the new signature is an edited form of the old one. If the signature is left as an empty list, the functor is simply to take the underlying set of a structure. Because many structures in mathematics consist of a set with an additional added structure, a forgetful