#amateur  someone who pursues a study or sport as a pastime
  supertype:  person__individual__someone__somebody__mortal__human__human_being__humanbeing__soul  a human being; "there was too much for one person to do"
  subtype:  bird_watcher__birder  a person who identifies and studies birds in their natural habitats
  subtype:  dabbler__dilettante__sciolist  an amateur who engages in an activity without serious intentions and who pretends to have knowledge
  subtype:  hobbyist  a person who pursues and activity in their spare time for pleasure

No statement uses or specializes amateur; click here to add one.