science
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6 defs 14 3 defs 18 6 defs 32 6 defs 17 5 defs 18 6 defs 15 3 defs 18 3 defs 16 5 defs 14 3 defs 18 3 defs 15 2 defs 18 6 defs 17 6 defs 20 3 defs 18 3 defs 14 6 defs 15 5 defs 17 6 defs 17 6 defs 17 6 defs 20 4 defs 21 3 defs 17 5 defs 15 6 defs 19 6 defs 19 3 defs 14 7 defs 23 6 defs 19 6 defs 19