A core sample brought to the laboratory for compositional analysis, where 80 g of the sample is placed in a mercury pycnometer and the volume of gas found is 0.53 cc. A piece of the same sample, weighing 120 g is placed in a retorte, where the water and oil volume is measured to 2.8 cc and 4.4 cc, respectively. A third piece of the sample, weighing 90 g is placed in a pycnometer and the bulk volume is measured to be 37.4 cc.(API oil = 40ْ). Calculate the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.​