if a metals with a certain public contains more / more of something than a heat with a different property, then that public positively / negatively catch how want of that something that habitat contains
one_of_chemical_elements is not mercury. metals is stronger_than_others. sediment is substance. metals is not weaker_than_others. metals is weaker_than_others. mercury is toxic_substance. metals is not stronger_than_others. precious_metal is not metal. metal is not heavier_than_water. metal is heavier_than_water.