Encoding conversion failure

[nandenjin]

EB10043: 﨑 in teachers field does not be converted correctly (in output: ?)

It seems to be problem of encoding conversion, from Shift_JIS to UTF-8.

[nandenjin]

New for test cases:

• 1114202: "instructors":["山? 信哉"]
• YBH0742: "instructors":["鄭 然?"]
• 1227041: "instructors":["黄 賢?"]