what's mine is yours

me:  'what's the address of NTC?'

sister:  'national telecommunications commission, BIR road, diliman, quezon city...'

me:  'BIR road?  not agham?'

sister:  'BIR road...'

me:  'how come <friend> who works at BIR gave her address as agham road?'

sister:  'i dunno...'

those two offices are along the same road...  NTC is BIR and BIR is agham?

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