With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: After the end of the Cold War and the advent of the Democratic Revolution, the air force was effectively grounded due to a lack of fuel and spare parts. However, the government has been trying to revive the air force since 2001. The country has the goal of developing a full air force in the future.
text_B: Aside from logistical difficulties, would you say that the real problem facing this nation's air force is the lack of educational opportunities for citizens?
NO.