→ skos:prefLabel → "1.2. Recovery of energy"
→ od:Advantages → "Possibility of using waste as a renewable source for the production of energy"
→ od:Disadvantages → "Chemical and physical knowledge"
→ od:Goal → "Obtain energy from material after use"
→ od:Id → "RecoveryOfEnergyEL"
→ od:hasLevel → "Level_2"