sentence: Convincing arguments support the fact that the root cause is that almost all the present - day cities are already packed with places of residence , commercial premises and recreation facilities and the land available for new housing developments is increasingly scarce .
modified: Convincing arguments can support that the root cause is that almost all the persent day cities are already packed with places of residence , commerce and recreation and the land available for new housing developments is increasingly scarce .
transformation: VERB:TENSE, OTHER, OTHER, OTHER, NOUN