Refer to the input text as context and select the correct relationship between 'Coal India' and 'Coal' from the available options.
Options: developer, brand, product/material produced, original broadcaster

Coal India: Coal India reported a 6.66% year-on-year dip in the net profit to Rs 3,764.34 crore in the June quarter against a net profit of Rs 4,033.22 crore in the same period last fiscal.
product/material produced