Utilize the input text as a context reference, choose the right relationship between 'Sinopec' and 'Beijing' from the options.
Options: headquarters location, product/material produced, chairperson, member of

These include Chinese search giant Baidu, financial services firm HSBC, instant noodle maker Tingyi, Beijing Airport and energy logistics firm Sinopec Kanton, whose share prices halved in the past week.
headquarters location