 หมายเลขของ Yurchikhin Fyodor Yurchikhin คืออะไร?
What's Yurchikhin Fyodor Yurchikhin's number? 
df = pd.DataFrame(columns=['number', 'astronaut'])
df[df['astronaut'] == 'Yurchikhin Fyodor Yurchikhin']['number'].values[0]