INC @hello.c, @scanf.c
INC @haskell/

INC haskell/lec-intro.hs
INC haskell/lec-intro.lhs
INC @tex/
Add report structure @project1.tex
INC @SOE/
INC @haskell/hw1/
INC @lec-intro.hs
INC @Project1/

INC Project1/
    INC project1.tex ...