"marks: none": parsed as "none"
"marks: crop": parsed as "crop"
"marks: cross": parsed as "cross"
"marks: crop cross": parsed as "crop cross"
"marks: cross crop": parsed as "crop cross"
"marks: none crop": INVALID
"marks: crop crop": INVALID
"marks: cross cross": INVALID
"marks: cross crop cross": INVALID
"marks: orange": INVALID
"marks: auto": INVALID