Possible Clues:

• Maintains what is during this month
• Keep asking for what is in this month
• Maintain one's little sister in a tin
• Maintain what is there, perhaps
• Maintain that this is is during this month
• Determinedly demand
• Perhaps Ma in, Ta in, in little sister over tea
• More than urge
• Not give up an argument
• Is not in this month to give in