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    { "id" : "http://webisa.webdatacommons.org/266542576"
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        "http://www.w3.org/ns/prov#value" : [ "One of the preferred additives (A) (ii) for use in the fuel compositions of this invention are esters represented by the formula 0 ca c 1 a \\m where either one of the groups R and R is an alkenyl group containing from 8 to 40 carbon atoms and the other of the groups R and R is a hydrogen atom, and R is C to C alkyl group, or the group wherein R and R are C; to C alkyl groups and R is a C to C alky" ] ,
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