Ecosystems can be in a region.Logical formLearned from20 sentences. An ecosystem can be artificial.Logical formLearned from20 sentences. Coral reefs can be among ecosystems.Logical formLearned from20 sentences. An ecosystem can be creative.Logical formLearned from20 sentences. An ecosystem can be biological.Logical formLearned from20 sentences. An ecosystem can be complicated.Logical formLearned from20 sentences. An ecosystem can be isolated.Logical formLearned from20 sentences. Stretches may pertain-to an ecosystem.Logical formLearned from20 sentences. Ecosystems may pertain-to a mountain.Logical formLearned from20 sentences. (Ocean ecosystems) may pertain-to persons.Logical formLearned from20 sentences. Ecosystems can be at risk.Logical formLearned from20 sentences. An ecosystem can be healthy.Logical formLearned from20 sentences. A role can be in ecosystems.Logical formLearned from19 sentences. An ecosystem may recover.Logical formLearned from19 sentences. An ecosystem may pertain-to an ocean.Logical formLearned from19 sentences.