Langdon is known mostly through his association with Dan Brown , and the novels " Angels & Demons " , " The Da Vinci Code , " " The Lost Symbol and Inferno " .
Head entity: the da vinci code Q81689 21 22 23 24
Tail entity: the lost symbol Q211006 28 29 30
Relation (head \u2192 tail): P156
Inverse relation (tail \u2192 head): P155