Keeping in mind that every order has a single buyer, but every buyer
(Recipient) can have multiple orders, you would define the link in the
order schema. Most relationships are 1:1 in one direction and 1:M in the
reverse direction. You define the link in the 1:1 "direction". This has
been done with neo:order. The reverse link (revlink) is
generated (and can be viewed in the Preview) but not stored in the
database as shown in the nms:recipient schema Preview: To define a true M:M relationship ...