Utilize the input text as a context reference, choose the right relationship between American Water and water from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Since our last case in 2017, Pennsylvania American Water will have invested $1.6 billion in infrastructure upgrades for the four year period of 2019 through 2022 including replacing more than 427 miles of aging water and sewer pipes.

Answer: product_or_material_produced