values, a, true, false, select, construct, describe, ask, where, filter, group\ by, minus, distinct, reduced, from\ named, from, order\ by, desc, asc, limit, offset, bindings, load, clear, drop, create, add, move, copy, insert\ data, delete\ data, delete\ where, delete, insert, using\ named, using, graph, default, named, all, optional, service, silent, bind, union, not\ in, in, as, having, to, prefix, base,
str, lang, langmatches, datatype, bound, iri, uri, bnode, rand, abs, ceil, floor, round, concat, strlen, ucase, lcase, encode_for_uri, contains, strstarts, strends, strbefore, strafter, year, month, day, hours, minutes, seconds, timezone, tz, now, md5, sha1, sha256, sha384, sha512, coalesce, if, strlang, strdt, sameterm, isiri, isuri, isblank, isliteral, isnumeric, regex, substr, replace, exists, not\ exists, count, sum, min, max, avg, sample, group_concat, separator