original_column_name,column_name,column_description,data_format,value_description
id,,unique id number indicating the dishes,integer,
name,,the name of the dish,text,
description,,description of the dish ,text,(no value)
menus_appeared,menus appeared,how many menus have this dish ,integer,
times_appeared,times appeared,how many times this dish appears in the menu,integer,"commonsense evidence:
if times_appeared > menus_appeard: this dish appeared in a menu more than once"
first_appeared,first appeared,the year that this dish appears first,integer,"commonsense evidence:
1.	the year outside of [1851, 2012], it means this data is not correct 
2.	if this dish lasts longer (last_appeared - first_appeard), it means its history is long or historical / classical"
last_appeared,last appeared,the year that this dish appears the last time,integer,"commonsense evidence:
1.	the year outside of [1851, 2012], it means this data is not correct
2.	if this dish lasts longer (last_appeared - first_appeard), it means its history is long or historical / classical"
lowest_price,lowest price,the lowest price of the dish,real,"commonsense evidence:
0: for free"
highest_price,highest price,the highest price of the dish,real,