eqstr_us.txt

[neiv2]

I am trying to understand the logic behind eqstr_us.txt. Here are the first few lines of the file:

EQST0002
0 5901
1 %1 %2 %3 %4 %5 %6 %7 %8 %9
100 Your target is out of range, get closer!
101 Target player not found.
102 Duplicate Lore Item deleted.
103 Duplicate Lore Item deleted.  There was one already in your bank.

Can someone explain the significance of line 2? What does "0 5901" refer to (it's NOT the number of lines in the file).

Also, what other code/files are the lines referencing? If a line is changed, it produces an error "cannot find string" message once you get to the character select screen. Thanks for any help.