$\bf{p}$ | $\bf{q}$ | $\bf{r}$ | $\bf{p+q}$ | $\bf{q+r}$ | $\bf{p+q+r}$ | |
$\bf{1a}$ | $p > 0$ | $q > 0$ | $r > 0$ | $p+q+r < 1/2$ | ||
$\bf{1b}$ | $p < 1/2$ | $r > 0$ | $p+q > 1/2$ | $q+r < 1/2$ | ||
$\bf{1c}$ | $p > 0$ | $r < 1/2$ | $p+q < 1/2$ | $q+r > 1/2$ | ||
$\bf{1d}$ | $q > 0 $ | $p+q < 1/2$ | $q+r < 1/2$ | $p+q+r > 1/2$ | ||
$\bf{1e}$ | $p < 1/2$ | $q < 1/2 $ | $r < 1/2$ | $p+q > 1/2$ | $q+r > 1/2$ |