sentence: You just have to think that 50 years ago we did n't know what a smartphone or a laptop was , in schools we used books of paper and not tablets or iPads , and now technology is part of our lives .
modified: You just have to think that 50 years ago we did n't know what a smartphone or a laptop was , in the schools we used book of paper and not tablet or iPad , and now technology is part of our lives .
transformation: DET, NOUN:NUM, NOUN:NUM, NOUN:NUM