<qa>  What is the name of the study that will be conducted in two phases?This is a randomized, Phase III, multicenter, open-label study designed to evaluate the safety and efficacy of atezolizumab in combination with cisplatin or carboplatin pemetrexed compared with treatment with cisplatin or carboplatin pemetrexed in participants who are chemotherapy-naive and have Stage IV non-squamous NSCLC. Eligible participants will be randomized by a 1:1 ratio into 2 groups: Arm A Atezolizumab Carboplatin or Cisplatin Pemetrexed and Arm B Carboplatin or Cisplatin Pemetrexed. The study will be conducted in two phases: Induction Phase and Maintenance Phase. 