Choose the word whose stress pattern is different from the others

Choose the word whose stress pattern is different from the others :
1.comfort    nation    apply      moment
2.medical    advise   vegetables    physical
3.anniversary     entertainment     volunteer     experiment
4.surgery     sympton     material      cavity
5.calender    appointment      expensive     vacation
6.chemistry    biology    physics     disease  
7.stomachache     contestant    temperature     championship
8.allow     cartoon     affect     vessel
9.decide    iron    gather    measure
10.order    rehearse    physics    teenager
11.beautiful    expensive    suitable     factory
choose the word that has main stress on a different syllable from the rest
1.actually    educate    organism    contaminate
2.commune    momentary     elaborate      modesty
3.accurate     customer     computer     exercise
4.contaminate    supervisor     investigate     convenient