Don’t know how rare it is but…
gl
712)73
7-(1+2)= days 73= 295-222
(12&7-2&12+7)=125= ays
y5a(s-a)s= years 21= 88-67
d(7+2)(7-1)= dif 496
172 is 134 44+50+78= 172
21 + 73 =94-= 5 6 letters
7+1•2= H+H=16-5=K initials
7&(8+7)+5&(1+&2&7)= GTO 327
(7•2-&1&7•2)= man and
mw&(7+2)&(7-1)&5= wife
Hope & GTO 327, man & wife
Best guess