It was in the Mass Rapid Transit (MRT). Probably is about 5-6pm, afterwork. The people could be shift worker and the train is not crowded. It could be taken in the evening or morning as some are going schools or work. It could also be in the morning or at night about 9pm or 10pm, people looked tired and sleepy.The name of the first person, wearing strip t-shirt, could be Ali, Morgan or Salim. The second person's name could be Ah Gao, Sleepy or John. The third person is call Kumar. The guys are thinking why they are scolded by the boss. They might also be thinking what their family members are doing.They need to catch some sleep. The third person is about 30 years old. They could also be less than 15 years old. The two Indian men is about 30+ years old and the chinese in the middle is about 20+ years old. The two Indian men also looked like they are 40+ years old and the chinese man is about 30+ years old. They are all married except for the middle one. It could also be that the chinese is married but not the two indian men. The indian men are married and have 1-2 children each. The chinese man looks like a student.The third indian man is married with 2 children, or 1-2 children. Might not know their names but they still like to enjoy taking the train and some are very happy. From the photo couldn't tell if there are any smell. The ventilation is ok, as not many people. The people are only tired after their midnight job. Don't think it smell in the train because of ventilation. Doesn't see anybody talking hence it should be quiet. the second guy is listening to pop music 'Greatest Love of All". Don't think its classical music. Might be listening to pop music "The moon represents my heart" (chinese song). The first and second person is thinking of their family who are overseas during the ride. Second person could be listening to chinese songs too. They could be carrying ipad, have water bottle, clothing to change before they go home after their work. They are wearing clean clothes, showered after their work. They may have breakfast too. Ali is blue collar worker and has working clothes inside the bag. Second man is student, have book inside. The third one is white collar, clerk or office man. They are all middle class. The people are walking into the train before the photo was taken. The Straits Time photographer took the photo. Train is running, environment very clean. The photographer wants to capture people in the train and how they behaved. The second and the third man are seated at the senior seats. They are pretending to sleep. It seems that they are in the light green chair color cabin. Those who work are really tired, work until 11pm so they closed their eyes. The MRT continues to take and align passengers. Show other people's working condition in Singapore is heavy and tired. Long hours of working.