android – 我的sqlite查询错了吗？

08-02 10:16:50.075: E/AndroidRuntime(29093): Caused by:  
android.database.sqlite.sqliteException: near "index": Syntax error (code 1):,while  
compiling: create table featured_kluster (_id INTEGER PRIMARY KEY AUTOINCREMENT,index  
TEXT,term TEXT)

我的SQL查询有什么问题？

public interface TableKluster extends Basecolumns {

        public String table = "featured_kluster";

        public String index = "index";
        public String term = "term";

        public String CREATE = "create table " + table + " ("
                + _ID + " INTEGER PRIMARY KEY AUTOINCREMENT,"
                + index + " TEXT,"
                + term + " TEXT)";
    }

我不知道索引字段有什么问题..