An installment can be unofficial.Logical formLearned from4 sentences. A (life story) may undergo installments.Logical formLearned from4 sentences. An experience may undergo an installment.Logical formLearned from4 sentences. An installment can be in a series of some (television series).Logical formLearned from4 sentences. An installment can be untitled.Logical formLearned from4 sentences. An installment can be to a trilogy.Logical formLearned from4 sentences. (Weekly mini-series) may undergo an installment.Logical formLearned from4 sentences. An installment may be announced in a month.Logical formLearned from4 sentences. A total can be constituted-of-or-filled-with some installments.Logical formLearned from4 sentences. Pirates may undergo an installment.Logical formLearned from4 sentences. A world-city may undergo an installment.Logical formLearned from4 sentences. A news may undergo an installment.Logical formLearned from4 sentences. A series may consist of some installments.Logical formLearned from4 sentences. An installment can be exclusive.Logical formLearned from4 sentences. A calendar may undergo an installment.Logical formLearned from4 sentences.