Construct melodies utilizing the provided motif and adhere to the outlined musical structure.
X:1
L:1/4
Q:1/4=100
M:4/4
K:G
['(G/ A/) B']  
X:1
L:1/4
Q:1/4=100
M:4/4
K:G
 G | (G/ A/) B A G | A A B (G/ A/) | B c d (c/ B/) | (A/ G/ A) G G | (G/ A/) B A G | 
 A A B (G/ A/) | B c d (c/ B/) | (A/ G/ A) G B | B A G F | (G A) B A A | G F G D | G A B (G/ A/) | 
 B c d (c/ B/) | (A/ G/ A) G |]  