Error parsing node of kind 'ERROR': {Node ERROR (0, 30) - (0, 61)} disease_tree?object=eq.Insulin-Producing tumor of Islet cells Ok(Select { table: "\"disease_tree\"", select: [], filter: [Filter { lhs: "\"object\"", operator: Equals, rhs: String("'Insulin'") }], window: None, group_by: [], having: [], order_by: [], limit: None, offset: None })