A company's sales data for three products (P, Q, R) across four regions (North, South, East, West) is shown below. What was the total revenue from Product Q in regions where Product P's revenue exceeded $15,000? | Region | Product P Revenue | Product Q Revenue | Product R Revenue | |--------|-------------------|-------------------|-------------------| | North | $12,000 | $18,000 | $25,000 | | South | $16,000 | $22,000 | $30,000 | | East | $18,000 | $15,000 | $20,000 | | West | $14,000 | $20,000 | $22,000 |