Given table below. Write SQL to answer question.
CREATE TABLE customer_monthly (
	month_end_date DATE, 
	customer_account_id VARCHAR(256), 
	subscription_contract VARCHAR(256), 
	account_status VARCHAR(256), 
	account_tenure_in_months BIGINT, 
) DISTSTYLE KEY DISTKEY (customer_account_id)

customer_account_id is a unique ID

Question: number of rows by tenure.  Tenure is an integer field. Group tenure into high, med, low categories.  Write exactly 5 paragraphs each separated with two new lines answering this question. The first paragraph must start with "assistance".
user