A thorn may defy some attempts.Logical formLearned from2 sentences. A thorn can be in a side of longserving a president.Logical formLearned from2 sentences. A thorn can be in a side of a lobby.Logical formLearned from2 sentences. A thorn can be a force.Logical formLearned from2 sentences. A thorn can be in sides of local governments.Logical formLearned from2 sentences. A thorn can be a leader of a majority.Logical formLearned from2 sentences. Some thorn can be in a side of relations.Logical formLearned from2 sentences. Radical groups can be a thorn.Logical formLearned from2 sentences. Advocacy of a position may prove a thorn.Logical formLearned from2 sentences. A (rose revolution) may turn into a bed of thorns.Logical formLearned from2 sentences. A decision can be a thorn.Logical formLearned from2 sentences. A thorn can be in a side of administrations.Logical formLearned from2 sentences. An ex-dictator may remain a thorn.Logical formLearned from2 sentences. A (border dispute) can be a thorn.Logical formLearned from2 sentences. A thorn can be in a side of bowlers.Logical formLearned from2 sentences.