Limonene (also found in lemon)
Alpha-pinene (also found in pine needles)
Beta-myrcene (also found in hops and mango)
Linalool (also found in lavender)
Beta-Caryophyllene (also found in pepper and Echinacea)
Caryophyllene Oxide (also found in lemon balm)
Nerolidol (also found in orange)
Phytol (found in green tea)"
To be honest this is the same argument people make for Haskell and I'm only assuming the argument applies to OCaml equally well.