Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Example Input: Question: What catalyst substances may also allow reactions to occur by different pathways that have lower activation energy? Answer: enzymes
Example Output: Enzymes may also allow reactions to occur by different pathways that have lower activation energy.

Example Input: Question: Which is larger: the human sperm or the human egg? Answer: human egg
Example Output: A human sperm is a tiny cell with a tail. A human egg is much larger. Both cells are mature haploid gametes that are capable of fertilization. What process is shown in this photograph?.

Example Input: Question: What structure does methane have? Answer: three dimensional tetrahedra
Example Output:
Methane has a three-dimensional, tetrahedral structure.