If anyone wonders, legatrix' comment probably refers to tungsten, a chemical element the existence of which was predicted by two Swedish chemists. The discovery itself was later made by two Spanish brothers. Chemistry is an area where Swedish scientists have historically been very successful, as you can see from this table:

Hmm, can see a little hint in there. Just reminding us of Sweden's contributions to world knowledge, no doubt!

So, I am the only one who thought about Obelix? :-o

How can we tell if it is put or puts in this sentence?