Logic question

Hi I have been reading critical reasoning study guide for LSAT because i hear it's good to have that under your belt as practice. So this might be strange to some/most of you.

S <-- T some U --> V

some T's are U's
All U's are V's
All T's are S's

and you get the diagram above, now the inference part.

by working logic math, one inference possible is some S's are V's

S some V

I don't quite see how..

I understand one can get some S's are T's and Some V's are U's, but I'm missing that last step connecting S's and V's.

Help anyone?

Thanks