An interior, low-angle photograph captures the lower extremities of at least two individuals inside a public transport vehicle in Lisbon, Portugal

An interior, low-angle photograph captures the lower extremities of at least two individuals inside a public transport vehicle in Lisbon, Portugal. On the left, a person wears grey trousers and a green Adidas Gazelle-style sneaker with white stripes. On the right, a person wears white trousers and a brown Adidas Gazelle-style sneaker with white stripes. The grey speckled floor features a horizontal yellow anti-slip strip in the mid-ground and a dark grey vertical panel on the left. Additional indistinct footwear is partially visible in the background, suggesting other passengers.