Hi! Maybe I miss something. the prefiy yI- indicates to the constellation 'you - him/her' but is also the imperativ for 'you' as in 'you do something'. However the solution 'Torg! wake up!' as command is rejected. Did I miss something?
The -moH on the verb means that Torg is being commanded to cause something to happen, not to do that something himself. Just commanding Torg to wake up would simply be yIvem Wake up!