เอกสารชื่อ 'Summer Show' มีกี่ย่อหน้า?
How many paragraphs for the document with name 'Summer Show'?
df1 = pd.DataFrame(columns=['document_ID', 'document_name']); df2 = pd.DataFrame(columns=['document_ID'])
df2[df2['document_ID'].isin(df1[df1['document_name'] == 'Summer Show']['document_ID'])].count()