A PhD says: If you take the red thingy with a gold thingy sticking out and push it into the red thingy with a hole in it, then take the white thingy with a gold thingy sticking out and into the white thingy with a hole in it, and finally the yellow thingy with a gold thingy sticking out and push it into the yellow thingy with a hole in it you've got it!
Ooops my PhD is in biochemistry, sorry., you'll have to ask JD!
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