ชื่อขององค์กรที่มีจำนวนผู้ติดต่อมากที่สุดคืออะไร?
What is the name of organization that has the greatest number of contact individuals?
df_organization_contact_individuals = pd.DataFrame(columns=['organization_id']); df_organizations = pd.DataFrame(columns=['organization_name', 'organization_id'])
org_id = df_organization_contact_individuals['organization_id'].value_counts().idxmax(); df_organizations[df_organizations['organization_id'] == org_id]['organization_name'].iloc[0]