Combine the given two facts to write a concluding fact. Note that there should be some parts of the first and second facts that are not mentioned in this conclusion fact. Your combined fact should be the result of a chain between the two facts. Chains form when two facts connect together to produce a concluding fact. An example of a chain is: "pesticides cause pollution" (fact1) + "pollution can harm animals" (fact2) → "pesticides can harm animals" (conclusion fact). Parts of the concluding fact overlap with the first and the second fact. To construct such a  concluding fact, a useful way is to borrow the subject from one fact and the ending conclusions from another fact.

Example Input: Fact 1: detailed observation of celestial objects requires a telescope. 
Fact 2: Telescopes Telescopes Telescopes and microscopes both use two lenses to produce magnified images.
Example Output: Two lenses to produce magnified images allow for detailed observation of celestial objects.

Example Input: Fact 1: Lakes are generally bigger and deeper than ponds. 
Fact 2: Lake Trout Lake Trout fishing is good in Loonhaunt and Pipestone Lakes.
Example Output: Loonhaunt is generally bigger and deeper than ponds.

Example Input: Fact 1: Flowing water can slowly dissolve carbon in sedimentary rock. 
Fact 2: Sedimentary Rocks One of the commonest sedimentary rocks is sandstone.
Example Output:
Flowing water can slowly dissolve carbon in sandstone.