A natural selection is often a attribute of a group, made use of to explain its dimension (how it is numerous) and distinguish it from other collections. 「関家の森」ではなく「関さんの森」というところがいいですね。親しみを感じます。 Exactly what is the probability the intersection of two random circles over a disk includes the centre on the disk? Les écrivains https://share.evernote.com/note/f5ed0f3d-3352-3d51-727d-10fa609eb157