Comments between lines raise syntax error

I have an a small array which I prefer to write line by line for readability, and I also would like to insert a few comments in-between some lines.



The following naive trial raises a syntax error in PARI-GP. How can I modify it a little bit to turn it into valid syntax ?



level4=([\

e4,\

/* Level 1 multiplied by Level 3 */

z1*z5,\

z1*z6,\

z1*z7,\

/* Level 2 multiplied by itself */

z2*z2,\

z2*z3,\

z3*z3\

])