Task: Question Generation
Input (English): Context : Silver Stallion (Hangul: 은마는 오지 않는다; RR: Eunma neun oji anhneunda; lit. ``The Silver Stallion Will Never Come'') is an award-winning 1991 South Korean film based on the novel by Ahn Jung-hyo. 
Subject : Silver Stallion 
Relation : based on
Output (English): Which is the basis of Silver Stallion?