<workflow_chain>
 <chain>
  <type>Accept Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Adopt Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Production Reduction Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Quantity Cancel Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Quantity Split Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Trade Model Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
 <chain>
  <type>Unify Solver</type>
  <workflow>solver_workflow</workflow>
 </chain>
</workflow_chain>