Who can help me to make this logic test simple? Y = a non B non CD + a non BC non D + a non BCD + AB non C non D + AB non CD + ABC non D + ABCD non + ABCD

Who can help me to make this logic test simple? Y = a non B non CD + a non BC non D + a non BCD + AB non C non D + AB non CD + ABC non D + ABCD non + ABCD

The first and third items are combined as: a non CD
The second and sixth items are combined as: BC non-d
The fourth and fifth items are combined as: ab non-d
Items 7 and 8 are combined as ABC
The final results are as follows
Y = a non CD + BC non D + AB non D + ABC