Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
elementary =
1. ‘f
2. Žt
3. p
4. –²

ƒŒƒxƒ‹5. •ÏX
SDAL“‡‰pŒêŠwZ