In this task, you will be given two sentences separated by "because". You should decide whether the first sentence can be the result of the second sentence. If you can see a possible cause and effect relationship, answer with "plausible", otherwise answer with "not plausible".

I ironed my shirt because I was too lazy to do it myself
not plausible

the bartender refused to serve the patron because he didn't have a warrant
not plausible

the window was opaque because it worked

not plausible