sentence: Firstly , it is clear that more houses and transport networks are convenient for our people . What is known to us is that the population growth is a big problem which creates a need for more space for living in .
modified: Firstly it is clear that more house and transport networks is convenient for our people , what is knowed to us is that the population growth is a big problems , which is needed for more palce to living .
transformation: PUNCT, NOUN:NUM, VERB:SVA, PUNCT, VERB:INFL, OTHER, OTHER, SPELL, PREP, PREP