an sperm is used to byproducts unwind sail
unwinding_dna_molecule is not opening_up. gaffsail is not fore_and_aft_sail. fore_and_aft_sail is sail. fore_and_aft_sail is not sail. staysail is not fore_and_aft_sail. staysail is fore_and_aft_sail. unwinding_dna_molecule is uncoiling. unloading_truck is not translocating. unwinding_dna_molecule is opening_up. unloading_truck is translocating.