Please Define the Following Terms or Concepts in No More

Please define the following terms or concepts in no more than two sentences, and give an example to support your definition.
A) The art of balance
B) The art of breathing
C) The art of conscious stretching
D) Back arch (Dhanurasana)
E) Bhakti yoga
F) Cobra (Bhujanghasana)
G) Fish (Matsyasana)
H) Fist over head (Ardha Chakrasana)
I) Hatha yoga
J) Head of cow (Gomukhasana)
K) Human triangle (Trikonasana)
L) Jnana yoga
M) Karma yoga
N) Kundalini yoga
O) Mountain pose (Tadasana)
P) One knee to chest (Pawan Muktasana)
Q) Pranayama
R) Salute to the sun (Surya Namaskar)
S) Sit and reach (Paschimottasana)
T) Spinal twist (Ardha Matsyendrasana)
U) Tight stretch (Baddha Konosana)
V) Two knees to chest (Apanasana)
W) Yoga
X) Yoga sutras
Y) Desk/cubicle yoga