section a-a a-a

A-A-A conjugation structure

S-A(A-A) missile

A.A.A.

carry a Mind

has half a mind to

He who has a mind to beat his dog will easily find his stick

one's mind is perturbed

A friend in need is a friend indeed

BPR MIS Development of IS IS architecture

EVERY SOUL IS A CIRCUS

Gann is a hign and cold area

intermediate system-to-intermediate system(IS-IS)

is-a hierarchy

Is-a Relation

IS-A relation IS-A

IS-IS

It is a long lane that has no turning

it is a pity