I dont knwo how to exactly play the part after 00:16 min. , but i think its something like this :
i think they use a wah pedal
Verse :
My big sister is the best of all the sisters in the world.
She says enjoing of the life is main thing , i agree with her.
She's standing by me when i've got hard times , i like about her prescence
Even if i fight with her sometimes its pretty easy to make friends .
Chorus & Outro :
it's the same like the intro
i think they use a wah pedal
Verse :
My big sister is the best of all the sisters in the world.
She says enjoing of the life is main thing , i agree with her.
She's standing by me when i've got hard times , i like about her prescence
Even if i fight with her sometimes its pretty easy to make friends .
Chorus & Outro :
it's the same like the intro