[match:term]
M1: "2 * 4"
M2: "2 / 4"
M3: "(2 * 4)(4 / 4)"
M4: "(2 + 4) * (2 - 4)"
M5: "(a + b)(a - b)"
M6: "4x"
M7: "-2x"

[ast:term]

[fail:term]


[match:mul]
M1:  "2 * 4"

[ast:mul]

[fail:mul]


[match:div]
M1: "2 / 4"
M2: "-x / 7"

[ast:div]

[fail:div]