(Pin positions) can be difficult.Logical formLearned from10 sentences. A mission may remain difficult.Logical formLearned from10 sentences. An economic downturn can be difficult.Logical formLearned from10 sentences. A (morning commute) can be difficult.Logical formLearned from10 sentences. (Travel conditions) can be difficult.Logical formLearned from10 sentences. Agreement may prove difficult.Logical formLearned from10 sentences. Life can be difficult for a US-president.Logical formLearned from10 sentences. Attention can be difficult.Logical formLearned from10 sentences. An elected-representative can be difficult.Logical formLearned from10 sentences. Boundaries can be difficult.Logical formLearned from10 sentences. A (fundraising environment) can be difficult.Logical formLearned from10 sentences. Life can be difficult for visitors.Logical formLearned from10 sentences. Foreign investment can be difficult.Logical formLearned from10 sentences. A standoff can be difficult.Logical formLearned from10 sentences. Campaigns can be difficult.Logical formLearned from10 sentences.