sentence: Unlike the past , where people had little knowledge about sanitation and hygiene , with better scientific understanding and public education , people learn to think and evaluate the quality of the water that they are drinking and using every day .
modified: Unlike the past , where people have little knowledge about sanitation and hygiene ; with better scientific understanding and public education , people learn to think and evaluate the quality of the water that they are drinking and using every day .
transformation: VERB:TENSE, PUNCT