SP001

Attribute: BOUNDARY

code		description
AB		abrupt broken
AI		abrupt irregular
AS		abrupt smooth
AW		abrupt wavy
CB		clear broken
CI		clear irregular
CS		clear smooth
CW		clear wavy
DB		diffuse broken
DI		diffuse irregular
DS		diffuse smooth
DW		diffuse wavy
GB		gradual broken
GI		gradual irregular
GL		gradual
GS		gradual smooth
GW		gradual wavy