สำนักพิมพ์คือ dengeki bunko และศิลปินคือ kiyotaka haimura ชื่ออะไร?
what is the title when the imprint is dengeki bunko and the artist is kiyotaka haimura?
df = pd.DataFrame(columns=['title', 'imprint', 'artist'])
df.loc[(df['imprint'] == 'dengeki bunko') & (df['artist'] == 'kiyotaka haimura'), 'title']