    Sentencé t What-doés it mean to say that a layer in a  Convolutional neural network'has a pooling stride. oF 2,27    Sentence 2: How should the dimension of the input layer.  of écinvolution ‘neural ‘network be? (ex: 1000 images, each  image is 3 channel qpd 32px-by 32px)    -