Create an E-R diagram for the simple version of Pokemon Go game as described below

A Pokemon character has a number; a unique name; stamina, attack and defence values . There are also different (zero or more) Fast Moves which can be shown by a character. Each Pokemon character has a primary type . Each Pokemon may also have a secondarytype. Pokemon type has a type name, a description and a type count (the number of characters with that type). A Pokemon type can be strong against zero or more Pokemon types. A creature is an instance of a Pokemon character. Each creature has a unique sequence number within all creatures for that character (Creatures of two different character s may have same sequence number, but creatures of same character will always have different sequence number) Each creature also has combat power (CP), experience points (EP) and a nickname. A player has a unique account name, an email and a level. A cr eature can be captured by a player at a location on a particular date. A location is identified by its latitude and longitude, plus a description. A player can own zero or more creatures. Not every creature must be owned by a player, but a creature can never be owned by two or more players. A gym is a special location which can be occupied with zero of more creature. A gym has a unique gym name. It also has a prestige value and is situated at a location. A creature may visit zero or more gym during the game

State any assumptions that you make.