Refer to the input text as context and select the correct relationship between 'iPhone' and 'Apple Inc' from the available options.
Options: operator, distributed by, director/manager, manufacturer

The housing index (.HGX) rose 1.64 percent on the data, outperforming the overall stock market, which fell after Apple Inc (AAPL.O) late on Tuesday gave a fourth-quarter revenue forecast that fell short of estimates and missed some targets for iPhone sales.
manufacturer