In this task, you are given concept set (with 3 to 5 concepts) that contain mentions of names of people, places, activities, or things. These concept sets reflect reasonable concept co-occurrences in everyday situations. All concepts given as input are separated by "#". Your job is to generate a sentence describing a day-to-day scene using all concepts from a given concept set.

Example Input: couch#room#window
Example Output: A couch and a window in a room.

Example Input: eat#pig#trough
Example Output: pigs eating from the trough

Example Input: sit#train#travel
Example Output:
passengers sit on a train traveling