---

plant → CapableOf → produce hydrogen	0.57
process → CapableOf → produce hydrogen	0.50
catalyst → CapableOf → produce hydrogen	0.48
electrolysis → CapableOf → produce hydrogen	0.47
algae → CapableOf → produce hydrogen	0.46
bacteria → CapableOf → produce hydrogen	0.46
methane → CapableOf → produce hydrogen	0.43
chemical reaction → CapableOf → produce hydrogen	0.40
energy → CapableOf → produce hydrogen	0.38
solar energy → CapableOf → produce hydrogen	0.36
enzyme → CapableOf → produce hydrogen	0.35
electricity → CapableOf → produce hydrogen	0.33
aluminum → CapableOf → produce hydrogen	0.32
green algae (subgroup of algae) → CapableOf → produce hydrogen	0.25