create a value stream map with these symbols: process box, process box $($ shared with other value stream$)$ work cell, supplier, data process box, worker, customer, unstructured inventory, safety stock, cross dock, supermarket, FIFO lanes, push arrow, withdrawal, sequenced pull ball, truck, fork lift, milk run, transport finished goods, Kanban, batch, triangle$/$single Kanban, withdrawal Kanban, batch Kanban, leveling, digital information flow, sequenced pull ball, Manual information flow, document, leveling board, Kanban post, database, problem, improvement idea, manual observation. you can use all symbols orjust some