sentences: fertilizers have a positive impact on algae growth
docs: fertilizers_agricultural_chemicals is chemicals. green_algae is algae. gulfweed is brown_algae. yellow_green_algae is algae. green_algae is marine_organism. brown_algae is multicellular_algae. green_algae is alga. seaweed is algae. brown_algae is algae. yellow_green_algae is alga.