Musical Mostifs in One Short Day?

EDIT: MOTIFS** Not Mostifs 😭

Everytime I listen to ‘One Short Day’, the intro always gets me! Before the Ozians start to say “one short day, if you only haadddd”, there’s a 30 second instrumental that sounds sooo much like ‘I’m not that Girl’ and sometimes I even hear ‘What is this Feeling?’ I wonder if those are intentional, or if they just happen to have similar tunes because of the key signature or something (can you tell I don’t know music theory LOL) Anyway I think it’s awesome! Just wanted to know if anyone could confirm or give any input! I’m interested to hear!