PS   HPS+ + H+++ +++ ++  +SHM++P  HTS HPS +   SH +  +++++ S++  H  H+S+    +M +M  MPM MPGFM+  ++  +++ H  ++   +M +  M+M  ++++   ++++ ++E+++  +++M+F B+++ +  +MM+P++

D - Depot. (place to repair ship, refuel ship, and buy extra fuel)
E - Exchange (place to buy goods)
B - Bank
F - Bar (food, beer, buy/sell)
S - System Parts
G - Guns Shields and Rapidheals
H - Hotel
M - Public Teleport (within city)
T - Tube Station (city to city)
P - Secure Parking lot
+ - Building (does nothing)