Well, that's quite a tangle. I assume rat, Rat and rate are the same thing. Start by listing all elementary (indivisible) propositions occurring in these statements. Give them good mnemonic one- or two-letter names. For example, "the rat drank the water" can be denoted by w. Don't denote it by x. Then carefully go through each statement and write it symbolically using the introduced variables. Post the result here for checking.

If $s\lor p\land m$ means $s\lor (p\land m)$ (as it should), then the assignment $p=q=r=m=F$, $s=T$ makes the hypotheses true and the conclusion false. If $s\lor p\land m$ means $(s\lor p)\land m$, then it alone implies $m$, independent of $s$.

Yes, the two hypotheses are negations of each other, so together they are contradictory. Therefore, they imply everything.