A difficulty is that supply of and demand for logs is continuously changing during the day so there is a need to have accurate information available at all times.
(A difficulty; is; that supply of and demand for logs is continuously changing during the day so there is a need) Context(A difficulty is,List([0, 15))):(supply of and demand for logs; is continuously changing; T:during the day)
A difficulty is,List([0, 15))
A difficulty supply of and demand for logs
is is continuously changing
that supply of and demand for logs is continuously changing during the day so there is a need
T:during the day