词语分类。

牡丹  白菜  苹果  草莓  荔枝     水稻   月季   香蕉  茄子  

葡萄  玫瑰  谷子  小麦  西红柿  腊梅   高梁  黄瓜  李子

蔬菜：                                                                                                      

水果：                                                                                                      

粮食：                                                                                                      

花卉：                                                                                                     

焦油加工的主要任务是获得酚、萘、蒽等纯产品和（）等粗产品。