a good topic for this is the beach. There are many sensory thing at the beach
Sad and stingy probably would not work in this situation, but sly and mean are possibilities. Although either could be correct, I would go with sly, which means they are sneaky and conniving. I’m not a 100% sure, but I believe sly is the best answer. I hope this helps!
children are born with innate ideas
Adverb and adjective phrase was added