sentence: Various people are shown in a workshop working while pushing objects, driving machinery, working machinery and etcetera. sentence:  A woman is shown putting a long metal piece into a large machinery and the words "TODAY'S TOPIC: WELDING" appears on the screen followed by a person wearing a mask and welding with a torch. sentence:  A woman is now standing at a machine and she is grabbing various metal objects and putting them into a machine that welds them together. sentence:  The outro appears and it's a white screen with a red and blue logo, website and hashtag information.