In this task, you're given a sentence and your task is to generate a simplified sentence that focuses on lexical paraphrasing from the original sentence given in the input.

free lossless audio codec -lrb- flac -rrb- is a file format for lossless audio data compression.
free lossless audio codec is a file format for lossless audio data compression.

initially very disorganized , surface pressures gradually decreased across the region , with a weak low pressure area developing on september 19.
initially very disorganized , surface pressures gradually decreased across the region , with a weak low-pressure area developing on september 19.

in biology , signal transduction refers to any process by which a cell converts one kind of signal or stimulus into another.

in biology , signal transduction means any process which a cell uses to change one kind of signal or stimulus into another.

