What does this sentence mean?
This is done by creating and sustaining demand for Water, Sanitation and Hygiene services and by providing an enabling environment to assure the supply side and institutional set up.
I guess the meaning of
This is done by creating and sustaining demand for Water, Sanitation and Hygiene services
is
This is done by making and keeping necessaries of Water, Sanitation and Hygiene services.
However, I can not understand the meaning of
by providing an enabling environment to assure the supply side and institutional set up
I would really appreciate it if you could help me as I have to translate this sentence to my language.