ABCD of Upanishad

ABCs of Upanishads (Inspired by company names). Can we teach these to our kids. I will give it a try atleast ;)

A – Aitareya
B – BrihadaraNyaka
C – ChAndogya
D – DarshaNa
E – EkAkshara
F – Paingala
G – Gopala Tapaniya
H – Hamsa
I – Isavasya
J – Jabala
K – Katha / KEna,
L –  
M – Mandukya
N – NirAlamba
O – 
P – Prasna
Q – 
R – Rudra Hridaya
S – Svetasvatara
T – Taittariya
U - 
V – Vasudeva
W – Waraha
Y – Yājñavalkya

Z – 
We may not have direct ones for L, O, Q, and U. 'F' for Paingala is also not perfect.