HEPData Reactions

(yaml file of particle names)
(html file of particle names)
Beam Particles
(Selected)Final State ParticleMultiplicity
inclusive or exclusive reaction?

Reaction:   -->

Old Input Format:
*reackey:   -->
&
*qual: RE :   -->

New YAML Format:
keywords:
  - {name: reactions, values ['  -->']}
&
dependent-variables:
  - header: { name: 'xxxx'}
    qualifiers:
      - { name: 'RE', value: '  -->'}
link to observables