TASK DEFINITION: This is a paraphrasing task. In this task, you're given a sentence and your task is to generate another sentence which express same meaning as the input using different words.
PROBLEM: a grey light infused the interior as if sunlight had been filtered through overcast skies .

SOLUTION: the light was gray , as if sunlight filtered through the clouds .

PROBLEM: all right , i better go put more money in the meter .

SOLUTION: all right , i better go put some money into the counter .

PROBLEM: when you see our mother , i want to know a day in advance , so i wo n't be there .

SOLUTION:
when you go to your mother , i want to know in advance .