| driving force |
| author's purpose(noun, cause, agent, originator) |
| basis(noun, cause, agent, originator) |
| beginning(noun, cause, agent, originator) |
| consideration(noun, cause, agent, originator) |
| determinant(noun, cause, agent, originator) |
| end(noun, cause, agent, originator) |
| foundation(noun, cause, agent, originator) |
| genesis(noun, cause, agent, originator) |
| inducement(noun, cause, agent, originator) |
| instigation(noun, cause, agent, originator) |
| root(noun, cause, agent, originator) |
| account(noun, cause, agent, originator) |
| agency(noun, cause, agent, originator) |
| analyze |
| antecedent(noun, cause, agent, originator) |
| creator(noun, cause, agent, originator) |
| doer(noun, cause, agent, originator) |
| element(noun, cause, agent, originator) |
| explanation(noun, cause, agent, originator) |