regress/age_load/data/conversion_vertices.csv

id,    string,           bool,        numeric,
1,     "John Smith",     "true",      1
2,     "John",           "false",     "-2"
3,     John Smith,       true,        1.4
4,     """John""",       false,       -1e10
5,     null,             false,       0
6,     nUll,             false,       "3.14"