friend from usa = friend: *: +1
friend from cze ( friend: *: +420 )
friend = family name: \1: given name: \2 {
Cermakova, Jana
Smith, *
Williams, Elizabeth
}
family name: Smith {
given name: James {
telephone: +1: 234 567 890
}
given name: Robert (friend: Smith, James) {
fax: +1 = telephone: +1
}
}
family name: Johnson {
given name: Patricia {
telephone: +1: 987 654 321
}
}
family name: Novakova {
given name: Jana {
telephone: +420: 123 456 789
}
}
family name: Cermakova {
given name: Jana {
telephone: +420: 987 654 321, 111 222 333
}
}
family name: Williams {
given name: William {
telephone: +1: 654 987 321
}
given name: Elizabeth {
telephone (friend: Williams, William: telephone)
}
given name: David {
telephone: +1: 654 321 987
}
}