NORTH  94  AT6432  T62  AQ  KQ862  Q9  Q73  854    J75  K875  A8  K963    AT3  J  KJ954  JT72

Dealer: South    Vul: Both   MP Scoring West Pass Pass Pass North 1 2 Pass East Pass Pass Pass South Pass 1N 2N

As a passed hand, South's 1N was semi-forcing, tending to deny fewer than 4 spades.
North anticipated another South bid, but tried 2 anyway.
If South had not passed earlier in the auction, a rebid of 2N would have shown 10 or 11 points without a fit.

South's rebid of 2 denied the combination 15+ HCP and two of top 3 honoured heart suit, so South could have, even with the 5 diamonds and extra Ten revalued to a pass of 2.

Declarer ducked the defense's first two spade leads, winning the 3rd perforce.
A club finesse lost to East's K.
A club was returned.

The T was advanced and won by West's Q. Two spades were cashed.
West's Q was then led and won by dummy's A.
East won the diamond switch to cash additionally the K.
Down 3 was -300.
"A Forcing NoTrump would have been better." suggested North.