articles"Our working definition of 'A knows B' means that A knows B by sight or name; that A can contact B in person by telephone or by mail; and that A has had contact with B in the past two years."
"Our working definition of 'A knows B' means that A knows B by sight or name; that A can contact B in person by telephone or by mail; and that A has had contact with B in the past two years."
