text: select
  	sum(l_extendedprice) / 7.0 as avg_yearly
  from
  	lineitem,
  	part
  where
  	p_partkey = l_partkey
  	and p_brand = 'Brand#54'
  	and p_container = 'LG BAG'
  	and l_quantity < (
  		select
  			0.2 * avg(l_quantity)
  		from
  			lineitem
  		where
  			l_partkey = p_partkey
  	);
  