After writing down some more thoughts she had regarding the effect of light on plant growth and reproduction, Jina proceeded to take notes on the points her classmates mentioned. It was difficult to listen to them, summarise their ideas and jot them down at the same time because she forgot what she heard quite quickly. She ended up copying most of her notes from Professor Rainwater's list on the whiteboard.

Upon hearing the next question and the banana peel example, she thought of another type of material that can be used in compost. It is known to contain plenty of minerals like nitrogen, though she knew there were disadvantages of using it too. She went up to the whiteboard and wrote "human waste". Then she turned around, ready to explain her answer ... but when she looked at her classmates her mind went blank. She turned back to the board for help but the two seemingly unrelated phrases confused her even more. What were they discussing again? "Human waste," she read out loud, "... yeah ...?" Puzzled and embarrassed, she handed the marker to the next student and returned to her seat.