Select all that correctly state LSTM$.$

LSTM is one of the first and most successful techniques for addressing the vanishing gradient problem.

LSTMs resemble standard RNNs but each ordinary recurrent node is replaced by a memory cell.

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LSTMs have long$-$term memory in the form of ephemeral activations, which pass from each node to successive nodes.

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LSTMs have short$-$term memory stored in the memory cell internal state.