Hi, I want to use Oaxaca Blinder Decomposition and Heckit for my final project.

Both are used to analyze the difference in wages between different types of disability and non-disability. There are three types of disabilities, namely blind, deaf, and speech impaired. The three variables are dummy variables. As an example:
deaf=1 if the individual has a hearing problem, 0 otherwise.
Non-disability consists of individuals who do not have hearing, vision, and speech problems.
Code:
gen nondisbld = 1 if deaf==0&blind==0&speech_impaired==0
How does the command analyze it in terms of, for example, the difference in wages between the deaf and non-disabled groups.

This is my dataex
Code:
* Example generated by -dataex-. To install: ssc install dataex
clear
input str2 id byte(blind deaf speech_impaired yeduc krt) float(lwage_m1 nondisbld)
"1"  1 0 0  9 0 13.458836 0
"2"  0 0 1  0 0 14.220976 0
"3"  0 0 0  9 0 14.220976 1
"4"  0 1 0  9 1 14.220976 0
"5"  0 0 0 16 1 14.220976 1
"6"  1 0 0 13 1 13.304685 0
"7"  0 0 0 11 1   14.7318 1
"8"  0 0 0  2 1  13.81551 1
"9"  0 0 0  6 0         . 1
"10" 0 0 1  4 0         . 0
end
With description:
id: is resident id
lwage_m1: log wages per month
krt : a variable that only exists in the selection model but is not in the wage equation.
Thank you in advance!