Then they students are free to investigate other sets of variables to see the influence on their design.
(they; are; free to investigate other sets of variables; T:Then) (they; to investigate; other sets of variables; to see the influence on their design) Context(they to investigate,List([5, 42))):(they; to investigate other sets of variables to see; the influence on their design)
they to investigate,List([5, 42))
they they they
are to investigate to investigate other sets of variables to see
free to investigate other sets of variables T:Then
other sets of variables to see the influence on their design
the influence on their design