write_canonical(`(q+w))?
write_canonical((a->b->v))?
write_canonical(a:-b)?
write_canonical(`(::a(w)|w))?
write_canonical(a<|d)?
write_canonical(<|(a,d))?
write_canonical(`(1+2 < 3-4 = 4*5 :>= 6/4))?
write_canonical(`(not a and not b or not c xor d))?
write_canonical(`(a;s))?
write_canonical((a,s,d,f,g))?
write_canonical((\+ a , \+ b ; \+ c ; d))?
write_canonical(`((\+ a , \+ b ; \+ c ; d)))?
write_canonical(`(a:b))?
write_canonical(`( `a & `b.c.`d))?
write_canonical(`( `a & `b . c . `d))?
write_canonical(sdfr4)?
write_canonical(' s d ')?
write_canonical(" s d ")?
write_canonical("""s""d""")?
write_canonical('''s''d''')?
write_canonical(1,2,3)?
write_canonical(1+2,3+4,5+6)?
write_canonical(+(2=>3))?
write_canonical(`+(3))?
