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Considerations
›"›apm˜’F•˜•F4p•=’˜4"mmp›˜*F˜’^"•F=˜*F›§FFm˜˜zp•›’˜"m=˜˜pVam˜ F¨›Fm’apm’•˜^a’˜4"¤’F’˜"˜•F=¤4›apm˜am˜›^F˜m¤h*F•˜pO˜zp’’a*dF˜˜pVam˜ F¨›Fm’apm’˜"ddp§F=˜*©˜›^F˜©’›Fh˜=FzFm=amV˜pm˜›^F˜m¤h*F•˜pO˜"=hama’›F•F=˜˜ zp•›’•˜p•˜F¨"hzdF:˜aO˜¢:¬¬¬˜˜zp•›’˜"•F˜"=hama’›F•F=:˜›^F˜h"¨ah¤h˜m¤h*F•˜pO˜ "ddp§"*dF˜˜pVam’˜a’˜•F=¤4F=˜*©˜¢:¬¬¬•
˜"VFm›˜pVam˜’˜"•F˜"d’p˜›•"4cF=˜Op•˜zF•’pm"d˜4"dd’•˜˜¤’F’˜›^F˜Oa•’›˜’cadd˜ "m˜˜VFm›˜a’˜dpVVF=˜am›p˜›p˜›•"4c˜zF•’pm"d˜4"dd’•˜O˜›^F˜Oa•’›˜dpVVF=_am›p˜’cadd˜a’˜ ¤mhF"’¤•F=:˜˜4•F=a›’˜›^F˜"VFm›˜pVam˜˜§a›^˜›^F˜zF•’pm"d˜4"dd:˜*¤›˜mp˜’cadd˜ ^¤m›˜V•p¤z˜a’˜4•F=a›F=˜§a›^˜›^F˜zF•’pm"d˜4"dd•
^F˜’©’›Fh˜4"m˜^"¦F˜Fa›^F•˜’zda›’˜p•˜’cadd˜^¤m›˜V•p¤z’˜*¤›˜mp›˜*p›^˜ ’ah¤d›"mFp¤’d©•˜pm_˜^¤m›˜V•p¤z’˜4"m˜F¨a’›˜§a›^˜Fa›^F•˜’zda›’˜p•˜’cadd˜^¤m›˜ V•p¤z’•˜cadd˜^¤m›˜V•p¤z’˜"•F˜•F„¤a•F=˜§^Fm˜¤’amV˜•
Interactions
mdF’’˜p›^F•§a’F˜’zF4aOaF=:˜›^F˜OF"›¤•F˜am›F•"4›apm’˜Op•˜’cadd˜^¤m›˜V•p¤z’˜"•F˜›^F˜ ’"hF˜"’˜Op•˜¦F4›p•_4pm›•pddF=˜’zda›’•
■**•F¦a"›F=˜a"damV
■==—Fhp¦F˜cadd’
m˜›^F˜˜Fm¦a•pmhFm›:˜"VFm›’˜^"¦F˜›^F˜"*ada›©˜›p˜"==˜"m=˜•Fhp¦F˜’cadd’˜ =¤•amV˜"˜dpVam˜’F’’apm˜*©˜=a"damV˜"˜•˜›^F•˜z^pmF˜¤’F•’˜§a›^˜4pm’pdF˜ zF•ha’’apm’˜4"m˜"==˜p•˜•Fhp¦F˜"m˜"VFm›Œ’˜’cadd˜pm˜*F^"dO˜pO˜›^F˜"VFm›•˜ p›F˜›^"›˜›^F˜"*ada›©˜›p˜"==˜"m=˜•Fhp¦F˜’cadd’˜=FzFm=’˜pm˜§^F›^F•˜"˜¤’F•˜ ^"’˜"˜4d"’’˜pO˜•F’›•a4›apm˜}˜›^"›˜"ddp§’˜"==amV˜"m=˜•Fhp¦amV˜’cadd’•}
■=hama’›•"›apm˜a›^p¤›˜"•=§"•F
˜pVam˜˜F¨›Fm’apm’˜"•F˜F¨›Fm’apm’˜§a›^p¤›˜^"•=§"•F•˜pVam˜˜ F¨›Fm’apm’˜•F„¤a•F˜’z"4F˜am˜›^F˜=a"d˜zd"m•
■VFm›˜p•c˜p=F˜›"›F’
a›^˜:˜"VFm›’˜4"m˜pmd©˜*F˜am˜"˜’amVdF˜§p•c˜hp=F˜"›˜"m©˜pmF˜›ahF˜Op•˜"dd˜ ›^Fa•˜’cadd’•
■’’a’›
^F˜’’a’›˜OF"›¤•F˜4"m˜*F˜¤’F=˜§a›^˜"˜’cadd˜^¤m›˜V•p¤z˜Op•˜F¨"hzdF:˜§^F•F˜ ›^F•F˜a’˜pmF˜’¤zF•¦a’p•˜zF•˜’cadd˜^¤m›˜V•p¤z}•˜^Fm˜"’’a’›˜a’˜’FdF4›F=:˜"˜4"dd˜ a’˜zd"4F=˜›p˜›^F˜’¤zF•¦a’p•˜"’’p4a"›F=˜§a›^˜›^F˜’cadd˜Op•˜›^F˜"4›a¦F˜4"dd•
■
"dd’˜›p˜›^F˜˜"VFm›˜pVam˜˜4"m˜4p¦F•˜›p˜•
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