{'lichens': [0, 0, 0, 3], 'air pollution': [5, 0, 0, 3], 'soil pollution': [1, 1, 0, 2], 'noise pollution': [1, 0, 0, 4], 'water pollution': [2, 2, 0, 0], 'best indicator': [0, 0, 0, 1]}