a, b, c, d;
a*->b;
a->*b;
note: Lost between
      neighbouring entities;
a->b*->d: \plLost after b;
a->b->*d: \plLost before d;
a->b->d lost at b++:
    \plLost just after b;
a->b->d lost at d -30:
    \plLost 30 pixels left of d;