Given $3$ MIPS assembly programs and they are executed in a $5-$stage pipeline processor.

Answer the following questions:

$($i$)$

add $s$1,$ $s$1,$$v$0$

add $s$1,$ $s$1,$ $s$3$

add $s$1,$ $s$1,$ $t$1$

$($ii$)$

lw $t$1,0($$s$3)$

add $t$2,$ $t$1,$ $t$3$

sw $s$2,4($$s$3)$

sub $t$3,$ $t$2,$ $t$1$

$($iii$)$

add $t$3,$ $t$4,$ $t$6$

lw $t$2,40($$t$3)$

sub $t$5,$ $t$3,$ $t$2$

lw $t$7,120($$t$5)$

add $t$8,$ $t$7,$ $t$2$

$($a$)$ Identify the type of hazards for each program.