How to use synonym filter and pebble filter together?

Question

I am trying to use a filter shinglewith a filter synonym(see code below). This gives me the result:

enforced

for

for exam

exam testing

Words enforcedand implementedoccur together in the same way as the testingand examination. Is it possible to get the following conclusion?

for

for

for exam

for testing

Json definition

String json = jsonBuilder()
        .startObject()
                .field("number_of_shards", 1)
                .startObject("analysis")
                    .startObject("filter")
                        .startObject("my_shingle_filter")
                            .field("type","shingle")
                            .field("min_shingle_size",2)
                            .field("max_shingle_size",2)
                            .field("output_unigrams",false)
                        .endObject()
                        .startObject("my_syn_filter")
                            .field("type", "synonym")
                            .field("format","wordnet")
                            .field("synonyms_path","prolog/wn_s.pl")
                        .endObject()
                    .endObject()
                    .startObject("analyzer")
                        .startObject("my_shingle_analyzer")
                            .field("type", "custom")
                            .field("tokenizer","standard")
                            .field("filter",new String[]{"lowercase","my_syn_filter","my_shingle_filter"})
                        .endObject()
                    .endObject()
                .endObject()
        .endObject().string();

client.admin().indices().prepareCreate("testshingle").setSettings(ImmutableSettings.settingsBuilder()
        .loadFromSource(json))
            .execute().actionGet();

AnalyzeResponse  resp= client.admin().indices().prepareAnalyze("testshingle", "implemented for testing").setAnalyzer("my_shingle_analyzer").execute().get();
for(AnalyzeToken token:resp.getTokens()){
    System.out.println(token.getTerm());
}