id	domain	url
ajst-2544	www.chemspider.com	www.chemspider.com
ajst-2544	www.britannica.com	https://www.britannica.com/science/melting
ajst-2544	www.grandinetti.org	http://www.grandinetti.org/ionic-bonding
ajst-2544	chemspider.com	https://chemspider.com
ajst-2544	www.drugfuture.com	https://www.drugfuture.com/chemdata
ajst-2544	www.ase.org.uk	http://www.ase.org.uk
ajst-2544	eric.ed.gov	https://eric.ed.gov/?id=ej1015670