CPL @1096 (96.9%) on 18-jan-2018 [ "arg2 like gold and arg1" "arg2 such as gold and arg1" "arg2 such as tungsten and arg1" "arg2 like copper and arg1" "arg2 like palladium and arg1" ] using (platinum, precious_metals)
CPL @1096 (99.2%) on 18-jan-2018 [ "arg2 such as sterling arg1" "arg2 like Gold and arg1" "arg2 like palladium and arg1" "arg2 like lead and arg1" "arg2 like gold and arg1" "arg2 such as gold and arg1" "arg2 such as copper and arg1" ] using (silver, precious_metals)
NELL has only weak evidence for items listed in grey
CPL @1098 (87.5%) on 21-jan-2018 [ "arg2 such as nickel and arg1" "arg2 such as gold and arg1" "arg2 like gold and arg1" ] using (copper, precious_metals)