baltic amber subgroup of amber, 8 assertions
AtLocation 2
lithuania 0.68
poland 0.51
HasA 1
3-8% of succinic acid 0.25
IsA 2
fossilized tree resin 0.46
organic substance 0.41
ReceivesAction 3
used by scientist 0.46
formed 0.25
produced by pine trees 0.25