Assertion: jack's use | /r/HasProperty | recent phenomenon
Facets:
Source sentences:
text: Although the use of Jack as a formal given name is a recent phenomenon, John – from which Jack was often derived – was, along with William, the most frequent male name throughout the nineteenth century and in the first half of the twentieth century.
text: Although the use of Jack as a formal given name is a recent phenomenon, John – from which Jack was often derived – was, along with William, the most frequent male name throughout the nineteenth century and in the first half of the twentieth century.