... source of the argument (PT19, S2, Q14; PT25, S4, Q04; PT39, S4 ...
> 5) Causation confusions (PT30, S2, Q25; PT47, S1, Q23; PT18 ... and sufficient conditions (PT22, S2, Q25; PT17, S2, Q11; PT17, S3, ... (PT17, S3, Q19); (PT17, S3, Q16)
>
> 21 ...