Salsola soda
In 1807 , Sir Humphry Davy isolated a metallic element from caustic soda; he named the new element "sodium" to indicate its relationship to "soda" . 
<triplet> caustic soda <subj> sodium <obj> has part <triplet> sodium <subj> 1807 <obj> time of discovery or invention <subj> Humphry Davy <obj> discoverer or inventor