parse error at 1.9:

unexpected ")"

expecting casl char, underline word, "%%", "%{", "%(", "%", "," or ":"

parse error at 2.8:

unexpected "="

expecting "{", "[", __, [<id>,...,<id>], "%%", "%{", "%(", "%", ",", "<=>", "(" or ":"

parse error at 3.8:

unexpected ")"

expecting words

parse error at 4.8:

unexpected "#"

expecting "{", "[", __, [<id>,...,<id>], "%%", "%{", "%(", "%", ",", "(" or ":"

parse error at 5.7:

unexpected "?"

expecting casl char, underline word, "{", "[", __, [<id>,...,<id>], "%%", "%{", "%(", "%", ",", "<=>" or "("

pred a() <=> %()%

e