What are the keywords in the following sentence? horizontal wide angle of tourists at the front entrance on a bright sunny day
day, entrance, tourist

What are the keywords in the following sentence? a couple of parents engrossed with their smart phones whilst ignoring their daughter at a restaurant
couple, ignore, phone, restaurant

What are the keywords in the following sentence? Two elephants are standing with chains around their ankles.
chain, elephant, stand

What are the keywords in the following sentence? italian dish and cake served on ship
cake, dish, serve