Try:
![enter image description here](https://i.stack.imgur.com/lafoe.png)
The formula in B1:
=AND(BYROW(TEXTSPLIT(A1," "," ",1),LAMBDA(x,SUM((LEN(x)={3,7,4,4,5})ISNUMBER(-x)(MID(TAKE(x,-1),3,1)=".")))))
Or, write a bit saner:
=AND(BYROW(TEXTSPLIT(A1," ",CHAR(10),1),LAMBDA(x,SUM((LEN(x)={3,7,4,4,5})*ISNUMBER(-x)*(MID(TAKE(x,-1),3,1)=".")))))