\overline{p}\overline{q}rs+p\overline{q}\overline{r}\overline{s}+p\overline{q}\overline{r}s+\overline{p}qr\overline{s}+\overline{p}qrs+p\overline{q}rs+\overline{P}q\overline{r}s+p\overline{q}r\overline{s}+\overline{p}q\overline{r}\overline{s}
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.