Analyze the relationship between 'stock market' and 'Stock Exchange' within the context of the input sentence.
Options: operator, publisher, product/material produced, legal form

Banks reopened last Monday and Greece submitted a plan to the European Central Bank last week for an opinion before a decision was made by the Greek finance ministry which would allow the stock market to resume trading as early as Monday.The Athens Stock Exchange official said Greece needed more time to finalize the details which would allow the market to reopen based on ECB's opinion.
operator