gistfile1.txt

# this
(x y z label: a = 1, b = 2, c = 3)

# does not produce this
(x y z (label ((a = 1) (b = 2) (c = 3))))

# but this (`:` has no knowledge of its left hand part)
(x y z label ((a = 1) (b = 2) (c = 3)))

# and this
(x y,z label: a = 1, b = 2, c = 3)

# does not produce this
((x y) (z (label ((a = 1) (b = 2) (c = 3)))))

# but this (the last term after `,` is closed by parentheses, end of block, `;` or `:`)
((x y) (z label) ((a = 1) (b = 2) (c = 3)))


# and this
(x: y,z label: a = 1, b = 2, c = 3; q)

# does not produce this
(x (y (z (label (a = 1, b = 2, c = 3)))) q)

# but this (same as above)
((x (y (z label) ((a = 1) (b = 2) (c = 3)))) q)