Steel can be exposed.Logical formLearned from11 sentences. Some lbs can be constituted-of-or-filled-with steel.Logical formLearned from11 sentences. Furnaces can be at (steel plants).Logical formLearned from11 sentences. Steel can be nice.Logical formLearned from11 sentences. (Steel giant) may traffick in toxic waste.Logical formLearned from11 sentences. Ribbons can be constituted-of-or-filled-with steel.Logical formLearned from11 sentences. (Steel legs) can be heavy.Logical formLearned from11 sentences. Steel can be in a kitchen.Logical formLearned from11 sentences. (Steel mills) may be shut_downed.Logical formLearned from11 sentences. (Steel shafts) can be true.Logical formLearned from11 sentences. An arch can be constituted-of-or-filled-with steel.Logical formLearned from11 sentences. Steel can be competitive.Logical formLearned from11 sentences. A (steel executive) can be retired.Logical formLearned from11 sentences. Towers can be constituted-of-or-filled-with steel.Logical formLearned from11 sentences. (Steel manufacturers) may pertain-to the world.Logical formLearned from11 sentences.