young joe hun and his team teach the computer to correctly analyze crowds. deciphering what's a head versus the back of the head. and what's just an object. all a home is, and that's all in volatile. sure. oh, he's our images from the web and from movies where there are many people here long at all here. what i always hear total neural daniel here. how about it? that's where we mark individual faces and label them. not roger home to have a short wave of golden. the pandemic presented the company with its biggest challenge, yet the software stopped working when suddenly everyone was wearing a mask to protect themselves against the virus. to hey, jan jo hun immediately launched a task force to feed the computers new data on along shorter shirt on google savannah and i, we then mobilized the whole company over going on. every one took pictures of themselves at home, or pictures with masks and different environmental tony soldiers. we all collected them guy. sure. i remember we started this in mid february or in by mid march. we released our facial recognition algorithm with masks title.