sentence2_structure: chemicals<>pouring<>out of deep-sea vents$$$Chemosynthesis<>helps<>microorganisms make food with chemicals pouring out of deep-sea vents$$$microorganisms<>make<>food
sentence1: In the hydrothermal vent environment, chemosynthesis is the primary mechanism for the conversion of chemical energy into biomass.
sentence2: Chemosynthesis helps microorganisms make food with chemicals pouring out of deep-sea vents.
question: Which process helps microorganisms make food with chemicals pouring out of deep-sea vents?