Create a mysql routine cursor with a select in a select

I have a table like the following:

id  gnome   dead
-----------------
1    pet    yes 
2    pet    no
3    pet    no
4    kin    no
5    kin    yes
6    kin    no

Now, I'd like to create a cursor in a routine taking:

1) all the rows where "dead" is "yes";

2) rows where "dead" is "no" only if there are no "dead" = "yes" for the same "gnome" before.

The result should be:

id  gnome   dead
-----------------
1    pet    yes 
4    kin    no
5    kin    yes