/usr/lib/aspell/split.kbd is in libaspell15 0.60.7~20110707-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 | # Natural (split) keyboard data file
qw
we
er
rt
yu
ui
io
op
as
sd
df
fg
hj
jk
kl
zx
xc
cv
bn
nm
|