teks `Hello, I want to ask you all, previously I always used a trolley bag for check-in when flying, but now I am going to fly to Greece via KLM and Air France. I read in the terms and conditions that they allow a total hand carry weight of 12kg. Most airlines accept a size of 55 x 25 x 35 inches for hand carry bags. So, do you have any suggestions on which backpack would be suitable? If we go by liters, is a 40-liter backpack too big for a 4-day 3-night trip?`, kelaskan texts {harassment, self-harm, religion insult, sexist, hate, racist, safe for work, psychiatric or mental illness, porn} dan pulangkan dalam bentuk JSON {'kelas'}
{"kelas": "safe for work"}