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+.TH Concept "Item types"
+.NA Item-types "Description of the different types of items"
+.LV Basic
+.s1
+The different kinds of people and materials are called items, or
+sometimes commodities.
+.s1
+The show command displays the detailed characteristics of items.
+.s1
+.EX show item
+.NF
+Printing for tech level '344'
+item value sell lbs    packing     melt  item
+mnem                in rg wh ur bk deno  name
+   c     1   no   1  1 10 10 10 10    4  civilians
+   m     0   no   1  1  1  1  1  1   20  military
+   s     5  yes   1  1  1 10  1  1   80  shells
+   g    60  yes  10  1  1 10  1  1  100  guns
+   p     4  yes   1  1  1 10  1  1   50  petrol
+   i     2  yes   1  1  1 10  1  1  100  iron ore
+   d    20  yes   5  1  1 10  1  1  100  dust (gold)
+   b   280  yes  50  1  1  5  1  4  200  bars of gold
+   f     0  yes   1  1  1 10  1  1    2  food
+   o     8  yes   1  1  1 10  1  1   50  oil
+   l     2  yes   1  1  1 10  1  1  100  light products
+   h     4  yes   1  1  1 10  1  1  100  heavy products
+   u     1  yes   2  1  1  2  1  1    2  uncompensated workers
+   r   150  yes   8  1  1 10  1  1 1000  radioactive materials
+.FI
+.s1
+The meaning of the headings are:
+.in \w'packing wh\0\0'u
+.L "item mnem"
+A one-letter mnemonic abbreviation of the item name.  Commands let you
+use this to select the item.
+.L value
+The value if the item is mortgaged.
+.L sell
+Whether you can sell the item on the market.
+.L lbs
+The weight of the item, which determines how much mobility it takes to
+move it.
+.L "packing in"
+The packing bonus the item receives in inefficient (<60%) sectors.
+.L "packing rg"
+The packing bonus the item receives in regular sectors.
+.L "packing wh"
+The packing bonus the item receives in warehouse sectors.
+.L "packing ur"
+The packing bonus the item receives in urban sectors.
+.L "packing bk"
+The packing bonus the item receives in bank sectors.
+.L "item name"
+The full name of the item.
+.in
+.s1
+To find out which sectors are in what packing groups, try the "show
+sector s" command.
+.s1
+.SA "Commodities, Products, show, Sector-types, Producing"