A (tourist tunnel) may undergo construction.Logical formLearned from18 sentences. A halt can be constituted-of-or-filled-with construction.Logical formLearned from18 sentences. Construction can be starting.Logical formLearned from18 sentences. Neighborhood may undergo construction.Logical formLearned from18 sentences. Construction of a facility may begin.Logical formLearned from18 sentences. A (gas explosion) can be at a (subway construction site).Logical formLearned from18 sentences. A subsidiary can be constituted-of-or-filled-with (construction giant).Logical formLearned from18 sentences. (Enrichment sites) may undergo construction.Logical formLearned from18 sentences. A country may announce construction of some (settler homes).Logical formLearned from18 sentences. Construction can be in a neighborhood.Logical formLearned from18 sentences. Hangars may undergo construction.Logical formLearned from18 sentences. Manufacturing can be in construction.Logical formLearned from18 sentences. (Settlement construction) may undergo an easing.Logical formLearned from18 sentences. A barrier can be under construction.Logical formLearned from18 sentences. (Paper mills) may undergo construction.Logical formLearned from18 sentences.