Among the blue chip stocks, construction company Fletcher Building fell 0.1 per cent to $8.27, telecommunications retailer Spark New Zealand declined 0.7 per cent to $2.86, and Auckland International Airport rose 0.6 per cent to $5.205.
Refer to the input text as context and select the correct relationship between 'Fletcher Building' and 'construction' from the available options.
Options: currency, employer, owned by, industry