`{:(CH_(3)CH_(2)CH_(2)C=CH_(2)),(" "|),(" "ClCH_( 2)-CH_(2)):}`
`{:(CH_(3)CH_(2)CH_(2)C=CH_(2)),(" "|),(" "ClCH_( 2)-CH_(2)):}`
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`{:(CH_(3)CH_(2)CH_(2)C=CH_(2)),(" "|),(" "ClCH_( 2)-CH_(2)):}`